Usb pinhole camera: ELP 3.7mm Mini pinhole USB Camera 960P 1.3 megapixel for Android System : Electronics


ELP 3.7mm Mini pinhole USB Camera 960P 1.3 megapixel for Android System : Electronics




No Import Fees Deposit & $14.88 Shipping to Russian Federation




Special Feature


Video Capture Resolution


Connectivity Technology


Has Image Stabilization


  • Make sure this fits
    by entering your model number.

  • Sensor:AR0130 1/3 CMOS Sensor

  • Picture format “YUY2 and MJPEG optional”/USB Protocal USB2.0 HS/FS

  • 3.7mm pinhole lens

  • mini black box housing

SNO Auto detection person face cmos cctv mini usb pinhole board camera

Model Number: SNO-USB200MP-P3.7

Brand Name: SNO

Origin: China (mainland)

Small Orders: Accepted

Key Specifications/Special Features:

  General Description: 
     The HD 2.0Megapixel USB CMOS board camera module(model: SNO-USB200MP-P3. 6F series), adopting HD lens, which meet those program need to see clear all kinds of distance. It is ideal for many applications like security systems, portable video system, video phones, industrial machine monitoring and toys. It use high quality image sensors made by Soni IMX Sensor +Korea Nextchip DSP, one of the world leaders in this field of electronics. 
     The 2.0 Megapixel USB Webcam are ideal for equipment manufacturers, experimenters and hobbyists.
*Intelligent analyze function: Auto detect person face to auto record.
*Tracking function: intruder detection
*CMOS 1.0MP sensor for high quality image and low power consumption.
*High speed USB 2.0 interface for high resolution PC camera interface.
*high pixel technology for sharp image and accurate color reproduction.
*low illumination – ideal for any lighting condition.
*Super small outline and thin profile for embedded applications.
*High frame rate– deliver 30 fps in 1MP=1920×1080 resolution
*High quality lens, 
*Low power consumption – ideal for portable equipment.
*UVC for use in Linux, Windows XP, WIN CE, MAC, SP2 or above.
*Free driver
*Support OTG Function
Car and ship control, electronic equipment, oil field equipment, industrial equipment, remote site monitoring, environmental monitoring, etc.
used for all kinds of machine as below:
machinery equipment, all-in-one machine, POS equipment, STB, smart box  TV BOX, advisement player, LED display, automatic vending machine, safety box, notebook, video door phone, MID, Tablet external, evaluator, Medical Equipment, on-the-spot law enforcement, door bell and button system, cat-eye system, simple security system, teaching system, Interactive system, automobile data recorder. Project video capture,  credit card machine, attendance machine, Voting system, High speed video
shooting Device, exam system, Driving learning system,

Optional models

(aluminum mini case, 3.6mm board lens)


Soni IMX

Lens size

1/2.8 inch

Max. Resolution

2MP 1920×1080

Picture format


USB Protocal


Support free driver

USB Video Class(UVC)1.1

Auto Face dection




OTG Function


Frame rate

1920 (H) x 1080 (V) pixels    MJPEG 30fps      YUY2 10fps
1280 (H) x 720 (V) pixels    MJPEG 30fps      YUY2 10fps
960 (H)   x 720 (V) pixels    MJPEG 30fps      YUY2 15fps
800 (H)   x 600 (V) pixels    MJPEG 30fps      YUY2 20fps
640 (H)   x 480 (V) pixels    MJPEG 30fps      YUY2 30fps
352(H)    x 288 (V) pixels    MJPEG 30fps      YUY2 30fps
320 (H)   x 240 (V) pixels    MJPEG 30fps      YUY2 30fps
176(H)    x 144 (V) pixels    MJPEG 30fps      YUY2 30fps
160 (H)   x 120 (V) pixels    MJPEG 30fps      YUY2 30fps 

Effective resoluion

1280 (H) x 720 (V) pixels
960 (H) x 720 (V) pixels
800 (H) x 600 (V) pixels
640 (H) x 480 (V) pixels
352(H) x 288 (V) pixels
320 (H) x 240 (V) pixels
176(H) x 144 (V) pixels
160 (H) x 120 (V) pixels
(Other special size resolution is customized)

Adjustable parameters

Brightness/Contrast/Color saturation/Definition

Night vision

optional, can choose IR board, not support IRCUT

view angle

30-170 degree optional


1m USB cable (2M/3M/5M optional)
(can also make the other special length cable according to your requirement)





work temperature



38x38mm / 32x32mm
(Other size customised)

Support OS

Linux with UVC
Mac-OS X 10. 4.8 or later
Wince with UVC
Android 4.0 or above

Any third-party trademarks or images shown here are for reference purposes only. We are not authorized to sell any items bearing such trademarks.

China Mini Camera manufacturer, Mini Bullet Camera, Dome Camera supplier

Shenzhen AmViewing Electronics Co., Ltd. is a professional Security CCTV Systems high-tech enterprises with the ability of product development, production and sales. We established a Wide range of businesses relationship with government departments, schools, highways, industrial sites, tourist attractions, residential area, urban transport, shopping center, entertainment, banking, airports and …

Shenzhen AmViewing Electronics Co., Ltd. is a professional Security CCTV Systems high-tech enterprises with the ability of product development, production and sales. We established a Wide range of businesses relationship with government departments, schools, highways, industrial sites, tourist attractions, residential area, urban transport, shopping center, entertainment, banking, airports and other related industries. AmViewing has a number of comprehensive high-quality, experienced engineering staff elite, with first-class technology, quality products, high-quality service and sincere attitude to satisfy our customers needs and protect customer′s investment interests, to win customers trust and high appreciation in this field in dometic and oversea. AmViewing established a good and long-term business relationship based on reliable quality, timely service, reasonable price around the world in more than forty countries and regions.

with rich experience, deep understanding and our clients valuable advice in this line, we made progress and showed more and better products to our customers. We created a cost-effective peak for the security surveillance industry, and has been contributing to the rapid development in this field.

AmViewing people insist on “Top Credibility, Good Quality, Timely Service, Reasonable Price” for business philosophy. with nonstop innovation, more and more quality products to meet the needs of our customers. We sincerely hope to enter into long-term business relationship with our new and old customers with quality products and services for a win-win cooperation. In the future We′ll continue to strive hard and keep an eye for the safe and harmonious society.

We provide one year guarantee on the basis of the ship date. All items are passed 24 hours aging testing before delivery. we assure you the quality as our products are passed strictly quality inspection before shipment.

1080P HD Pro Grade WiFi Streaming Mini DIY Pinhole Hidden Camera Kit

  • 1080P HD WiFi Internet Streaming DIY Camera Kit
  • Rechargeable Battery
  • Micro SD Card Reader
  • Wall Charger
  • Quick Start Guide
  • Instruction Manual
  • 2 Year Warranty
  • Lifetime Tech Support
  • Q. How easy is it to set up this hidden camera?

    Setting up the HC100w is simple and takes about 5-10 minutes. Just download the streaming/setup app, charge the camera kit’s battery (or plug into AC power), and configure using the app on your smartphone.

    Q. How is the pinhole spy camera kit powered?

    The camera kit can be either battery or AC powered, depending on your specific recording needs. In battery power, the camera can operate up to 4-5 hours on a single charge. For longer term use we recommend using AC power for 24/7 operation with no battery life concerns to worry about.

    Q. Are there any fees to view, stream, or record my video?

    No there are not – all you need is your existing wireless internet connection.

    Q. Can I add multiple cameras to monitor different areas of my home or business?

    Yes you can – you can view as many cameras via the app so you can monitor multiple rooms or areas. You can even have cameras in different locations (ie. one at home and one at your office) and monitor them all from the app at once, assuming each is connected to a WiFi signal at their respective locations.

    Q. How do I watch my live streaming video?

    To watch your live streaming video, you simply need to open the app on your iPhone or Android device and click on the camera you want to view.

    Q. What are motion detection/activity alets?

    Motion detection alerts are handy because they allow you to get instantly notified if your camera detects movement or activity, which meakes it ideal for home security or office security when you aren’t around.

    Q. Can I record my video too?

    Yes you can – in addition to live streaming, you can also record video to a micro SD card hidden inside the camera kit. The HC100w accepts up to a 64GB memory card, which can store dozens of hours of video.

    Q. Can I adjust different camera settings?

    Yes you can – via the app you can adjust over a dozen different camera settings including video resolution, streaming quality, time/date stamp, motion sensitivity, contrast, and many more. This allows you to customize the streaming and recording to your exact needs.

    Q. Can multiple people watch the stream at once (such as my spouse or partner)?

    Yes you can have multiple people able to watch the live stream at once, so for example, if you wanted to install the streaming app on your spouse’s phone so you can both watch your cameras at home, would just need to enter the camera ID and password in the app on the second phone so you can both watch it.

    Q. Do I need any special WiFi network or router for this camera?

    The HC100w is compatible with most wireless networks. A 2.4GHz signal is needed, which most routers have. Some networks may have additional layers of security (such as public WiFi networks like a coffee shop or business) that may need additional steps to connect properly, so if you are unsure of the security requirements for your specific network make sure to contact your network administrator to ensure compatibility.

    Q. How do I watch my recorded video files?

    There are two ways to view your videos recorded on the memory card. The first is to remove the memory card and insert into the card reader in your computer (PC or Mac) and double click on the files to play. We recommend VLC Media Player for playback for best performance. You can also remotely download the videos to your smartphone to view, however this can be time consuming since the files can be large and depends on your connection speed.

    Q. What if I don’t have a WiFi network in my house? Can the camera operate in P2P mode?

    This camera is primarily designed as a WiFi streaming camera, however you can operate it in P2P mode if you prefer. P2P mode allows you to stream to a smartphone nearby using short-range P2P connection, which allows you to monitor the camera feed from up to 15-20 feet away.

    Q. Can I live stream to a PC or Macintosh desktop computer or laptop?

    The camera streams to an iPhone or Android device only, it doesn’t stream to PC or Mac computers.

    Q. Can the HC100w be used outdoors?

    The HC100w is not a weather resistant camera, it is designed for indoor use only.

    Mini Pinhole Camera, Cone Lens, Analog CCTV, 1080p AHD, HD-TVI, HD-CVI

    The MINI-CN4 is a pinhole camera with mini cone lens that can be used in security call box, ATM, and hidden spy surveillance installations. The only part of this security camera that needs to be exposed is the very end of the cone shaped pinhole lens. The rest of the camera housing can be completely hidden / concealed inside of any object. Some CCTV Camera Pros customers hide these cameras inside of walls, clocks, and toys. Custom hidden spy cameras can be fabricated from just about anything to conceal these mini CCTV cameras.

    Tiny-Sized Pinhole Camera

    Here is a picture of the MINI-CN4 next to a US Quarter coin to show the tiny size. The camera is enclosed in a square case that measures 25mm(w) x 25mm(h) x 18mm(d). The u-shaped bracket swivels and allows for simple installations inside of ATMs and gate call boxes. Celling and wall mount installation is also supported.

    This camera is hybrid analog CCTV / 1080p HD-over-Coax. It supports analog 960H resolution and 2 megapixel / 1080p video resolution via AHD, HD-TVI, HD-CVI formats. This means that it can be used with legacy analog CCTV DVRs and the latest HD security camera DVRs. The video modes can easily be switched using the video format selector joystick.

    The camera has an advanced OSD menu that can be accessed using a small push-button joystick located on the video cable that can adjust settings such as backlight compensation, day/night mode, color, contrast, sharpness, hue, gain, and more. For most users, the factory default settings work great and the camera simply needs to be powered on and connected to a video output.

    This camera comes with a 4.3mm cone-style pinhole lens which provides a fairly wide angle of view (about 63 degrees). You can see the angle of view and excellent video quality this camera captures in this sample
    surveillance video and these
    sample snapshot images.

    This camera is typically connected to a
    CCTV DVR to record video surveillance. However, if you would like to connect this security camera to a TV instead of recording, please refer to this BNC to HDMI converter add-on. You can select it from the options drop-down above.

    Pinhole Camera Overview

    • 1/3″ Sony CMOS Sensor
    • Ultra Small Pinhole Camera
    • Tiny Cone Shaped Lens
    • 4.3mm Lens = 63 degree field of view
    • Small Dimensions: 25mm(w) x 25mm(h) x 18mm(d)
    • Easy to hide behind or inside objects
    • Typically used in security call boxes and ATM machines
    • 4 Video Modes: analog CCTV (CVBS), AHD, HD-TVI, HD-CVI
    • 960H Resolution (960 x 480) in analog CVBS mode
    • 1080p / 2 megapixel Resolution (1920 x 1080) in AHD, HD-TVI, HD-CVI modes
    • BNC Video Output
    • 2.1mm Power Plug Connection
    • U Type Holder Bracket
    • OSD Display Controlled by Joystick
    • 3D DNR (Digital Noise Reduction)
    • WDR (Wide Dynamic Range)
    • 256x Sens-Up (for low light surveillance)
    • BNC camera connection (plug-n-play setup)
    • 12V DC Power supply included

    Watch this video to see video surveillance footage recorded using a MINI-CN4 connected to an HD surveillance DVR. The MINI-CN4 was running in 1080p AHD mode when this video was recorded.

    Camera Specification

    Download the
    MINI-CN4 camera specification here.

    Here are some sample surveillance images captured using the MINI-CN4.

    This first picture was captured with Mike standing 5 feet away from the camera.

    Close-up Surveillance

    Here is a close-up snapshot captured with the MINI-CN4. Mike is just 18 inches away from the pinhole camera lens in this snapshot. This snapshot is simulating the distance that faces typically appear in front of ATM machines and security call boxes.

    Mobile App Remote Camera View

    These images were captured while viewing a
    MINI-540CO pinhole spy camera remotely using the Android and iOS apps for iDVR-PRO.

    The MINI-540CO is the exact same pinhole camera as the MINI-CN4, except it has a flat lens mount, instead of the cone shaped lens mount.The internals of both camera’s are indentical.

    The camera is connected to an iDVR-PRO surveillance DVR (you can learn more about this DVR below). The DVR includes free mobile apps for iPhone and Android that allow you to view your camera live, receive push notifications, and also playback video that has been recorded on the DVR’s hard drive.

    Remote iPhone App View

    Please click on the image for full-sized HD.

    Remote Android App View

    Please click on the image for full-sized HD.

    Security Gate Call Box Pinhole Camera

    You can see in the above image how the MINI-CN4 is installed inside of a security gate call box.

    Installers can easily select the video mode using the small joystick that is attached to the camera’s video cable. Simply hold the joystick in any direction for 5 seconds to switch to that video mode.

    An optional
    BNC to HDMI converter can be ordered with this camera. The converter allows you to connect your security camera to a TV via the HDMI input of your TV. In addition to the BNC video input on the converter, there is also a BNC loop output so that you can connect the camera to a security camera DVR in addition to a TV / monitor. The BNC loop output is optional to use.

    This device can be used solely as a way to connect your security camera to a TV for a live view only or you can also use the BNC output to also connect the camera’s video to a second device, such as a DVR for recording video surveillance footage. You can see this in the above installation diagram.

    This camera works great with
    Viewtron security camera DVRs. Viewtron 4K CCTV DVRs are hybrid. They support analog CCTV cameras, HD BNC cameras, and network IP cameras up to 4K resolution.

    Custom Systems Designs & Quotes

    CCTV Camera Pros designs custom video surveillance systems for customers and can provide a free quotes via email. In addition, you can schedule a free telephone consultation with a Pro.

    We realize that requirements can vary and some customers need to mix and match various model cameras. Some customers have questions and prefer to speak with a professional designer on the phone. You can
    request a free telephone consultation here. You can request a free custom quote here. You can also just email us directly instead of filling out a form here.

    CCTV Camera Pros is proud to have an
    A+ rating at the Better Business Bureau and an average of 5 star reviews at Reseller Ratings. We were able to achieve this through the outstanding technical support and customer service that our team provides to our customers.

    The 6 Best Hidden Cameras of 2021

    Our editors independently research, test, and recommend the best products; you can learn more about our
    review process here.
    We may receive commissions on purchases made from our chosen links.

    If you’re hoping to keep tabs on your home but don’t like the look of unsightly security cameras, a hidden camera might be the perfect home security solution. These compact cameras are much easier to incorporate into your decor, giving you peace of mind without announcing their presence.

    Hidden cameras come in many shapes and sizes. Some resemble miniature security cameras, while others are incorporated into phone chargers, clocks, or other household fixtures, allowing them to hide in plain sight. When selecting the best product for your needs, consider the camera’s battery life, where it stores footage, and whether it has features like Wi-Fi connectivity or motion detection.

    With these considerations in mind, here are the best hidden cameras to keep your home secure.

    Final Verdict

    Our top pick is the Blink Indoor Camera (view at Amazon), which is easy to conceal in your home and can even be monitored via your smartphone. For an even smaller camera, consider the Sirgawain Mini Spy Camera (view at Amazon) which records footage on a memory card and boasts 1080p HD clarity.

    The Spruce / Sage McHugh


    The location where you plan to use your hidden camera will determine the best product for your needs. Think about: Will the camera be outside or exposed to the weather? Does it need a wide-angle view to capture the whole room? If it’s motion-activated, does it need technology to rule out false alarms? You’ll be able to narrow down your selection as you define which features you need. 

    Video quality

    Another important consideration is the quality of the video. Since hidden cameras are tiny, the quality may not be as good as a standard camera. Get a product with at least 720 pixels; otherwise, you may not be able to make out the details in the footage.

    Record time

    Some hidden cameras only capture motion-activated clips, while others record continuously. Look into which method your camera uses, as well as whether the video footage is stored on a memory card or uploaded to the cloud. If it goes to a memory card, most cameras rewrite over existing files once full, so make sure you check footage regularly or risk losing it.

    The Spruce / Sage McHugh

    10 types of spy cameras that could be watching you now, #6 is shocking

    Camera technology has advanced a lot the past few years. They keep getting smaller and smaller, making it possible to conceal them any which way.

    Spy cam manufacturers have been creative in producing some of the most cleverly disguised (and tiny) camera/DVR systems, complete with HD video, motion detection, large storage card support and remote controls.

    So here are 10 spy cameras you’d never expect!


    USB flash drive spy cameras

    These cameras look like your regular USB storage sticks, but think again. They have a hidden camera inside! It’s not unusual these days for someone to be carrying USB sticks around so spotting them can be a bit challenging.

    Tech news that matters to you, daily

    Privacy, security, the latest trends and the info you need to live your best digital life.

    So how can you tell? The camera lens for these USB stick cameras is usually located on the posterior end of the stick, opposite the USB plug. With this form factor, this spy cam will blend seamlessly in an office or classroom.

    The product shown here is a U-Disk Nanny Cam Video Recorder USB Flash Drive Hidden Camera from Amazon.

    2. Men’s shower gel spy cameras

    As creepy as it sounds, they actually sell these now. They’re cameras disguised as shampoo or body wash bottles. The top half of these sneaky little spy cams is actually a refillable container for legitimate shower gel and the bottom half houses the camera circuitry. They are also advertised as water-resistant, equipped with motion detection and a remote.

    This type of spy cam makes sure it will record only what you want to record, but it’s also something you should watch out for when you’re staying at someone’s house, or in a rental.

    The product shown here is an Adidas Men’s Shower Gel Bathroom Spy Camera from

    3. Wi-Fi AC adapter spy cameras

    Now, these cameras are disguised as your regular power brick/AC power supply. They plug into the wall like any run-of-the-mill wall wart and they look unassuming enough to be mistaken for anything else. They even come with their own wire that apparently powers nothing. But they hide a deep, dark secret. They are actually fully functional camera/DVR systems.

    The lens for this spy cam is usually hidden in a tiny hole between the + and – polarity symbols. Some models also have built-in Wi-Fi so you could live stream the footage to your phone or tablet via app as it happens. If live streaming is not your thing, it also saves on a Micro SD under a hidden compartment on the unit.

    The product shown here is a Focuslife HD Hidden Home Security Surveillance Camera Nanny Camp P2P Wireless Spy Camera, available at Amazon.

    4. Bathroom tissue box spy cameras

    These spy cams look like normal tissue paper boxes or toilet roll dispensers but look again! Many manufacturers of some of these contraptions advertise them as pinhole free so they are harder to detect. They’re a bit bulkier than the other spy cams but blend seamlessly into a home setting. Just plop them down on a table or dresser and no one would suspect a thing.

    The product shown here is a Tissue Box Portable Hidden Camera from Amazon.

    5. Electrical outlet spy cameras

    See that wall outlet face that almost always resembles a startled emoji? Well, it might just be a camera in disguise. The tiny cameras for these units are hidden within the normal electrical sockets’ holes.

    The rechargeable ones have sticky adhesive backs so they could be positioned anywhere there is a wall to cling to. But other models actually plug in and go on top of an existing wall outlet.

    The product shown here is a Spy-MAX security Products Hidden Camera Outlet from Amazon.

    6. Toilet brush spy cameras

    Who would ever think this lowly toilet sanitation device could be anything else? Well, no one… except the guys who thought of the toilet brush spy camera, of course. And there lies the charm of this little gizmo. Who would ever want to mess with a filthy toilet brush in a stranger’s house? Exactly.

    Most of these units come with a remote control and motion detection, too, so covert surveillance is entirely possible with these deceptive little things. These spy cameras aren’t found in many of your typical retail stores, but there are online shops that are dedicated to selling them.

    This product is the Pinhole Spy Toilet Brush from SpyCameraBathroom. com.

    7. Smoke detector spy cameras

    Smoke detectors may just be the perfect hiding spot for hidden cameras because they are usually installed higher up in a room (say, the ceiling). These smoke detector spy cams also use wide angle lenses and this, combined with elevated placement, could provide full room surveillance and maximum privacy invasion.

    It’s important to note that most of these are not working smoke detectors. So, if you’re in a location that seems to have more smoke detectors than necessary, it may be a sign that some of them are hidden cameras.

    This product is the PalmVID DVR PRO Smoke Detector Hidden Camera Spy Camera with Adjustable View from Amazon.

    8. Clock radio spy cameras

    These cameras come in different shapes and sizes and they do play media files and have FM radios built in. You won’t suspect a thing if you are jamming to your favorite tunes, right? Clock radios usually have busy user interfaces with knobs, labels and sensors so the pinhole lens for these spy cams will be harder to spot.

    Some models can even shoot in low-light conditions and loop recordings on a large capacity micro SD card. This means that all-day, all-night coverage is certainly possible.

    The product shown here is the Jumbl Mini Hidden Spy Camera Radio Clock from Amazon.

    9. Cellphone charger spy cameras

    Similar to the power adapter spy camera, this device is plugged in to the wall, pretending to be a regular USB charger. But it’s really a fully functional USB phone charger – with a few extras, like a mini camera and a fully functional DVR!

    These types of spy cams actually do double as real chargers too, so they’re difficult to spot.

    The product shown here is the Hidden Spy Camera 1080P HD USB Cube Surveillance Wall Charger Cam with Motion Detection at Amazon.

    10. Sports shoes hidden spy camera

    Sneakers are probably one of the last places you’d think to look for a spy camera, but these stealthy cameras exist. They look like regular shoes, but have a tiny camera embedded in one of the tongues. The camera points upward, giving the spy a bottom up perspective of the surroundings.

    The product shown here is the Men Sports Shoes Pinhole Spy Camera from

    As you can see, spy cameras now come in the most unexpected forms! If you’re a bit wary that there may be incognito cameras around you, there are tools that could help you detect them. Click here to learn how to spot them now.

    Getting information about an image camera model using Python

    I am working on a python automation in which I have to collect information about the camera model (canon, Nikon, etc.) of an image. I have searched a lot but only get pixel resolution, size and other image data.
    Is there any API or library where we can find each camera related information or specific API that gives information about the camera model?






    Salil Tamboli

    23 November 2015 at 08:48

    1 answer

    • Retrieving Client Environment Information Using Cookies

      I just started with Java servlets a few days ago. I am trying to develop a program just for practice and to see what we can do with Java servlets. Trying to have a program that generates a cookie and sends it back to the client in response. Sending cookies back …

    • How to remove EXIF ​​(camera) data from an image using carrierwave?

      Somebody knows? With the help of a paper clip, a special config command appeared. Removing camera data from an image saves 25-30 KB per file.This is very sensitive if we make many versions (thumb, small …). In small images, the actual file size without this information …


    Python library exifread can be used to extract a lot of information from a JPG image, including Image Make and Image Model , for example:

      import exifread
    with open (r "sample.jpg ", 'rb') as f_jpg:
        tags = exifread.process_file (f_jpg, details = True)
        print tags ['Image Make']
        print tags ['Image Model']

    This might show something like:


    Please note that I have not tested this with the latest version. It can be installed with:

      pip install exifread


    Martin Evans

    23 November 2015 at 09:05

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    Floating sauna obscura in Finland –

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    In Finland, there has recently been a fashion for an unusual sauna – an obscura sauna, which, among other things, is also floating! EFinland explains what it is.

    Two ancient inventions in one


    The essence of such a sauna is that it works not only as a sauna, but also as a camera obscura, that is, it gives an inverted all-round view inside itself.

    Recall that the camera obscura was invented before our era and it is designed very simply: it is just a light-tight box with a small hole in one of the walls and a screen on the opposite wall.Rays of light pass through the hole and, depending on the focal length, create an inverted picture on the screen. We can say that the camera obscura is one of the earliest and most primitive photographic devices.

    Photo: Yle / Rasmus Tåg

    Finnish artist Heidi Lunabba, who had to work with photographic equipment for a long time, came up with the idea to combine two old inventions – a sauna and a camera obscura. Before that, Heidi, together with her friends, made a camera obscura in the form of a small house. The sauna was the next step. The result is a small miracle.

    Inside and outside at the same time

    The interior of the sauna serves as the very box on the walls of which the screen is placed. Well, so that there was something to see in the sauna obscura, Heidi made her floating! The idea is brilliant, because from the middle of a lake or bay the view is always wider than from someone’s yard. Well, since the walls and benches in the sauna are white, you can see everything very well.

    Photo: Yle / Rasmus Tåg

    Inside, the camera reflects the landscape outside.It turns out that you are, as it were, on the border between the inner and outer space. The wall of the sauna reflects the water and the coastline, while the paddle boat you sailed on sways from the ceiling. No wonder – everything should be upside down in the Obscura camera.

    From Loviisa and back

    Heidi Lunabba launched her brainchild into the water for the first time in her hometown of Loviisa, which is located on the seashore, or rather, on the shore of a small calm bay. It happened in 2004.

    From Loviisa, the sauna traveled all over Finland: visited Vaasa, Kirkkonummi, Rauma, Raseborg, Helsinki, Turku and other places. Soon, her counterparts began to appear in different parts of the country. They are seen both in the north of the country and near the capital, in Espoo.

    Heidi Lunabba. Photo: Yle / Kaisa Kumpula

    This year Heidi’s sauna obscura is swimming in his native Loviisa until the end of August. You can still have time to visit it. You just need to agree with Heidi. To do this, she needs to write to Heidi @
    By the way, usually in Finnish saunas it is either forbidden to take pictures, or it is not accepted – photography is welcome in this sauna!

    Andrey Nesterov

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    Finns show their houses

    Material reincarnation in Finland

    Film camera from Lego / Habr

    Why not?

    I really like Lego constructor, cameras and programming. I decided to combine these three hobbies and build an automatic film camera from Lego. I wanted the camera to do everything by itself: all the user had to do was insert the film, aim at the target, and press a button.

    In this post I would like to talk about how I made an automatic camera from Lego, how I programmed it and what came of it.

    Camera Obscura

    I started from the very beginning, with a pinhole camera. This is the basis of any camera: light enters the film (or sensor) through a hole and leaves an image there.I decided to make a hole in a piece of foil. With the help of one of the mini drills, I made a hole with a diameter of about 0.3 mm.

    Now it was necessary to assemble an opaque camera, in which the film would be located. Calculators from Mr. Pinhole. They made it possible to calculate the optimal dimensions of the chamber. It’s very simple: with a hole size of 0.3 mm, the distance from the hole to the film should be somewhere around 60 mm.

    The principle of operation is very simple: the user inserts a new film cassette, the film is immediately rewound onto a free reel.With each new frame, the tape is wound back into the cassette. When all the frames are snapped off, you just need to get the used cassette. Here are a couple of snapshots of the assembly process:

    I wanted the pinhole camera to provide three interfaces: control of the main spool (which the user supplied), control of the free spool (where the film is unwound), and control of the shutter. It looks like this:

    In the future, the motors of the automation module will turn these three gears. In the meantime, I needed to make sure the camera was blocking out light.I took my design to the darkroom. I decided to use photographic paper to find light holes. Photo paper is sensitive to light: where light hits, a black spot appears. I stuffed photographic paper into my camera obscura, brought it out into the light, waited a few minutes and developed the paper. The entire surface was covered with black scars. It took me several hours to find all the holes and cover them with duct tape. Here’s what happened:

    The camera obscura was completed. To be honest, many amateurs assembled such devices themselves.So while I was on a relatively well-trodden path. However, I did not find a single amateur project that went further and decided to automate my camera.


    I had Lego bricks as a child. However, the set

    Lego Mindstorms

    I bought only recently. The kit contains three motors, a pair of buttons, a light sensor and a programmable module. Everything you need for a modern camera.

    The automation module should contain three motors – two for rewinding and one for controlling the shutter, – a release button, a light sensor and a sensor that determines if a pinhole camera is inserted.The last sensor is quite important: it is he who determines the moment when the camera is just inserted and it is necessary to unwind the film. It should have turned out something like this:

    Specific details were constantly lacking. The BrickLink website came to the rescue. On it, I found absolutely all the details and was able to buy them through PayPal. It must be said that the prices were very reasonable. Soon the automation module was assembled. The camera obscura was neatly inserted into the automation module:

    Iron, or rather, plastic was ready.It remains only to program this matter.


    The programmable module (controller) is controlled by the operating system from Lego. The module can be programmed in a visual development environment: drag bricks-operators, make blocks-cycles, etc. I really did not like this shit. So, the first thing I did was flip the module with the Lejos system. Programs for it can be written in a somewhat truncated Java. What we need for our adventure.

    I posted the camera code on http: //

    The program contains several interesting features:

    Logic for calculating the film rewinding angle

    It turned out to be much more difficult to rewind the tape than it seemed to me at first. Film spools are very similar to a spiral. That is, the angle to which the spool must be turned to wind 40mm of film depends on the amount of film already wound. To make the calculation, I had to use an equation of the second order. You don’t code that every day. Who cares to see – the logic in the file



    Calculation of valve speed

    And then a trap awaited: the Lego sensor returns the illumination level with a number from 0 to 1023. I was not able to find out how this number relates to any physical values. So I had to build a correspondence using the scientific poke method. I rented a light meter and went for a walk. I took a measurement with a Lego sensor, wrote down the reading, then measured it with a device. The result is a fairly passable correspondence table. It seems to me that it can be clarified, but it will do for beta.Who cares to see – welcome to



    User interface

    I really wanted to dynamically update the information about the camera: whether a pinhole camera was inserted, the exposure meter value, the number of frames, the current task, etc. Additional thread, a little magic, and, it seems to me, it turned out almost like an adult:


    Everything was ready. Here is a video demonstrating how the camera works:

    And here are the resulting photos.Hydrant:

    Neighbor moves:

    I will continue to shoot with my camera: it’s so simple, I press the button – and you’re done!

    Camara Obscura – DEVice KIngdoms

    Camara pinhole (lat. Camara obscūra – “seòmar dorcha”) – an seòrsa inneal as sìmplidh a leigeas leat ìomhaigh optigeach de nithean fhaighinn.

    Is e bogsa teann aotrom a th ‘ann le toll ann an aon de na ballachan agus scrion (glainne reothadh no pàipear tana geal) air a’ bhalla mu choinneimh.Bidh ghathan solais a ’dol tro tholl beag (tha an trast-thomhas aige an urra ri“ fad fòcas ”a’ chamara, timcheall air 0.1-5 mm), a ’cruthachadh ìomhaigh invert air an sgrion.

    Air bunait a ‘chamara obscura, chaidh cuid de chamarathan a dhèanamh, ris an canar Stenop.

    Tha camara toll-giuthais na chùis shònraichte de dh ’inneal le fosgladh còdaidh.

    Air sgàth nach eil eileamaidean optigeach ann an camara toll-giuthais a bheir buaidh dhìreach air solas (ach a-mhàin oir an toll), tha e freagarrach airson ìomhaighean a chruthachadh ann an linnean làn.


    Chan urrainn dha camara toll a bhith a ‘toirt ìomhaigh àrd don ìomhaigh. Nuair a lùghdaicheas trast-thomhas an toll, chan eil an ìre biorach a ‘dol ach gu ìre shònraichte, ma tha an toll ro bheag, bidh buaidh sgaoilidh solais air an toll a’ tòiseachadh a ‘toirt buaidh an geom chan eì …

    Tha am pròiseas airson ìomhaigh a shoilleireachadh na dhearbhadh matamataigeach. Tha an ìomhaigh air an sgrion na dhearbhadh dà-thaobhach den nì a tha san dealbh le àite sgapte de stòr solais puing (eng.gnìomh sgaoileadh puing), tha cumadh ìomhaigh stòr solais puing ann an cùis optics geoimeatrach a ’co-fhreagairt ri cumadh leudaichte an toll (ma nì sinn dearmad air eadar-dhealachadh agile sgaraidhean e Mar eisimpleir, ma tha an toll ann an cruth slit, an uairsin bidh ìomhaigh stòr puing mar loidhne dhìreach agus bidh ìomhaigh an t-seallaidh neo-shoilleir loidhneach; ma nì thu grunn thuill, thèid an ìomhaigh “iomadachadh” (faic cuideachd Encode Aperture).

    Tha Obscura air a chomharrachadh le doimhneachd mòr neo-chrìochnach.Tha e comasach bruidhinn mu fhad fòcas an toll-giuthais a-mhàin le cumhachan. Mar as trice thathas a ‘tuigsinn an fhaid fòcas co-ionann de chamara mar an astar bhon toll chun sgrion. f … Co-mheas f / D. canar, mar anns an lens, an àireamh-F. Camara le f = 100 mm agus trast-thomhas toll D = Tha luach fosglaidh f / 0.5 aig 200 mm. Tha àrdachadh an fhosglaidh (fosgladh) gu 1mm (dà stad) a ’lughdachadh na h-àireimh gu f / 100. Mar sin tha an ùine nochdaidh air a lùghdachadh gu 25 latha.


    Bha a ‘chiad camarathan toll-giuthais nan seòmraichean dorcha (no bogsaichean mòra) le toll ann an aon de na ballachan. Thathas a ‘toirt iomradh air an obscura camara cho tràth ris a’ XNUMXmh-XNUMXmh linn RC. e. – thug luchd-leantainn an fheallsanaiche Sìneach Mo-tzu (Moists) cunntas air coltas ìomhaigh invert air balla seòmar dorcha. Is dòcha gu bheil iomradh air obscura camara ri fhaighinn ann an Aristotle, a bha a ’faighneachd ciamar a dh’ fhaodadh ìomhaigh cruinn den Ghrèin èirigh nuair a tha e a ’deàrrsadh tro tholl ceàrnagach.

    Anns an linn XI, chleachd an neach-saidheans Arabach Ibn al-Haytham (Alhazen) à Basra teantaichean sònraichte gus sùil a thoirt air eclipses na grèine. A ’faighinn eòlas air cho cronail’ s a tha e sùil a thoirt air a ’ghrèin leis an t-sùil rùisgte, rinn e toll beag ann an canopy a’ teanta agus rinn e sgrùdadh air ìomhaighean naèine choine muin ’im bhalla. B ’e Alhazen a’ chiad fhear a mhìnich prionnsapal an obscura camara, stèidhichte air prionnsapal iomadachadh solais dìreach.Aig an aon àm, cho-dhùin e nach eil an teòiridh ris an robhar a ‘gabhail san fharsaingeachd mu iomadachadh solais anns na bliadhnaichean sin (a rèir dè na ghathan solais a’ tighinn bho na sùilean agus, “mar gum ‘ faireachdainn ”an nì) nach eil a ‘freagairt ri fìrinn.

    Anns na meadhan-aoisean, chaidh an obscura camara a chleachdadh a-rithist agus a-rithist airson beachdan speurail. Mar sin, anns an XNUMXmh linn, chleachd am feallsanaiche Sasannach Roger Bacon agus an speuradair Frangach Guillaume de Saint-Cloud e gus sùil a thoirt air eclipses grèine, chleachd speuradairean XNUMXmh linn Levi ben cam gershom-agus ceàrnach na h-Alba a thomhas. a ‘ghrian (Levi ben Gershom – cuideachd planaidean).

    A rèir coltais, b ’esan a’ chiad fhear a chleachd obscura camara airson sgeidsichean bho bheatha le Leonardo da Vinci. Thug e cunntas mionaideach air cuideachd anns an Treatise on Painting aige. Ann an 1686, dhealbhaich Johann Zahn camara obscura so-ghiùlain le sgàthan 45 ° a dhealbh ìomhaigh air a ’bhalla chòmhnard as àirde ann am bogsa. Chaidh am pàipear a chuir gu còmhnard air uinneag glainne sa bhalla, agus cha deach an ìomhaigh air a thionndadh bun os cionn, a ’dèanamh dealbh nas fhasa.

    Chleachd cuid de luchd-ealain (mar eisimpleir, Vermeer) obscura camara gus an cuid obrach a chruthachadh – cruthan-tìre, dealbhan, sgeidsichean làitheil. B’e bogsaichean mòra a bh ‘ann an camarathan obscura aig na h-amannan sin le siostam de sgathanan airson solas a leigeil seachad.

    Tha Isaac Newton anns a ‘chlàr aige’ Optics ‘a’ toirt cunntas air prionnsapal obrachaidh uidheamachd coltach ri obscura camara, ach le inneal eadar-dhealaichte.
    Anns an Ruis, ann am meadhan an XNUMXmh linn, bha an obscura camara, ris an canar “colossus airson dealbhan a thogail,” farsaing.Shoirbhich leis an fhideag Makhaev, le cuideachadh bhon “colossus airson toirt air falbh ro-shealladh St. Petersburg”, a rinn am preantas de “ealain ionnsramaid” Tiryutin ann an seòmar ionnsramaid St. bailtean-mòra Ruiseanach eile.

    Gu tric, an àite toll sìmplidh, chaidh lionsa (mar as trice aon lionsa) a chleachdadh, a mheudaich gu mòr soilleireachd agus soilleireachd an ìomhaigh. Le leasachadh optics, dh ’fhàs lionsan nas toinnte, agus às deidh innleachdas stuthan a bha mothachail air solas, thàinig camarathan toll-giuthais gu bhith nan ciad chamarathan.

    Ach, eadhon a-nis bidh cuid de dhealbhadairean a ’cleachdadh na“ stenoops ”ris an canar – camarathan le fosgladh beag an àite lionsa. Tha ìomhaighean a chaidh an glacadh le camarathan mar sin air an aithneachadh le pàtran bog sònraichte, sealladh sreathach air leth agus doimhneachd achaidh gu math mòr.

    Anns an àm ro-dhealbh, chaidh camara-lucida a chleachdadh cuideachd, a chaidh a chruthachadh ann an 1807 leis an eòlaiche fiosaig Sasannach Wollaston – priosam ceithir-thahobhach, aig ceighàrn de sòothra sheìrì -tìre le duilleag pàipeir air a tha sgeidse air a dhèanamh.

    Ann an ealain

    • Tha an obscura camara air a chleachdadh airson aon de na murtan ann an Anamorph le Henry S. Miller.
    • Tha an obscura camara ri fhaicinn ann am film Peter Webber The Girl with a Pearl Earring.
    • Ann an aon de na tachartasan san t-sreath “Heroes”, bidh boireannach a ’cumail sùil air eclipse grèine a’ cleachdadh a ’chamara seo.
    • Ann an White Collar, bidh na prìomh dhaoine a’lorg a leithid de rùm obscura camara ann an taigh trèigte.
    • Chaidh an obscura camara a chleachdadh anns na Simpsons.
    • Chaidh an obscura camara a chleachdadh ann am prògram 7 de sheusan 3 de Mad Men. Air a ‘chlàradh, choimhead na gaisgich eclipse grèine iomlan.
    • Is e aon de na nobhailean Nabokov an t-ainm Camera Obscura.
    • Chaidh buaidh obscura a ‘chamara a chleachdadh ann an aon de na tachartasan san fhilm “Outland”.
    • Tha camarathan toll-giuthais anns na geamannan coimpiutair Turgor agus Voice of Color le Ice-Pick Lodge: ma bheanas tu ri piuthar sam bith le dath, chì an gaisgeach an fhìor fhìrinn aice anns a chamara toll-g’iuthais.
    • Thathas gu tric a ‘toirt iomradh air an obscura camara ann an nobhail Chuck Palahniuk, The Diary.
    • Anns an t-sreath Da Vinci Demons, bidh Leonardo a ‘cruthachadh obscura camara agus a’ dealbhadh ìomhaigh a-steach do na speuran, agus mar sin a ‘dubh-cheileadh britheamh àrd-inbhe agus mar sin a’ bagàirt a chuir dha air feadh Florence le giùlan mì-bheusach.
    • Tha an obscura camara ri fhaicinn anns an fhilm Miracle aig Steven Chbosky.

    Buaidh camara toll-giuthais ann an nàdar

    • Rè pàirt de eclipse grèine, thathas a ‘cumail sùil air dubhar corrain air uachdar na talmhainn. Bidh na faileasan sin a ‘leantainn cumadh na grèine, le pàirt dheth falaichte leis a’ Ghealach.
    • Bidh sùilean an nautilus ag obair mar chamara toll-giuthais.

    Faic cuideachd

    • Àite sgapte
    • Daingneachadh (sgrùdadh matamataigeach)
    • Fosglaidh còdaidh
    • Stenop
    • Dirkon
    • Lucida camara
    • Pseudoscope



    • Vladimir Levashov. Òraid 1. Cùl-fhiosrachadh agus faighinn a-mach am meadhan // Òraidean air eachdraidh togail dhealbhan / Galina Elshevskaya. – 2mh deas .. – M. : “Susbaint Trimedia”, 2014. – S. 11-28. – 464 p. – ISBN 978-5-


    • Surdin V.G., Kartashev M.A. Camara Obscura // Quantum. – 1999. – # 2. – P. 12-15.
    • Tomilin M. Camara pinhole (Ruiseanach) // “Dealbh Sobhietach”: iris. – 1974. – # 1. – P. 42-43… – ISSN 0371-4284.


    • Surdin V.G. A ‘cumail sùil air sunspots le obscura camara clasaigeach.

    Camera Obscura & World of Illusions → Royal Yacht Britannia: 4 ways to get there from RUB 456

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    From Camera Obscura & World of Illusions to Royal Yacht Britannia by foot and bus

    It will take approximately 23 minutes from Camera Obscura & World of Illusions to Royal Yacht Britannia at a distance of 7 km. The shortest travel time is usually 19 minutes. Flights operated by Lothian Buses. Usually there are 390 flights per week, but the schedule for weekends and holidays may change, check in advance.

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