G 4K Usb Camera Autofocus Webcam 2160p Camera Module

G 4K Autofocus Usb Camera Dual Microphone Webcam,Ultra HD 2160p 30fps Web Camera Module .......Visit the G StoreCamera comes in a small box with pictures of various models of camera on one side and a picture of a housed camera on the other, so clearly the box caters for various models. The camera module inside is just in a bubble wrap sleave with leaflet explaining how to plug it into a USB port and extremely brief setup. There is even a page regarding a varifocal lens which is not part of the kit.The camera comes with a 90cm length of cable, quite thick with a USB-A plug on the end, (the camera requiring USB 2.0), and there is a tight-fitting lens-cap over the lens. At first connection (Windows 10) it is detected, and driver installed. Opening Windows ‘Camera’ App you can adjust a few of the settings such as the resolution of video or stills capture, brightness, contrast and if ‘pro’ option is enabled you can manually adjust the focus. Using AMCap (another capture application) you get access to a lot more settings and controls.In use, the live image was a bit flat, maybe a little washed out, focus was great up close but would not focus correctly to infinity, noting that when pointed out of the window the image was not very sharp at all. I figured out that the lens can manually be adjusted (tweaked) to bring infinity objects into focus which made all the difference, I also noticed that if left untouched the focus would also hunt a little for no reason at all on fixed objects.Although not visible on the live image, when viewing recordings there were artifacts on hard edges like bright jagged lines. This was only visible on 4K recordings but not on HD or lower resolutions. This could be down to the capture software, but I tried several capture programs, and all had the same artifacts.Frame rates are good, reaching the specified 30fps at 4K which is pretty good, but the fps varies dependent upon light levels and drops to a minimum of 20fps in low light. There was no lag, judder or smearing apparent on fast moving objects such as waving my hand Infront of the camera. Sound was also recorded along with the video, this was from the stereo microphones fitted to the camera board, the recordings were at 48000Hz, 195kbps. The file size of a 10 second recording at full rate was 96MB!Whilst in use the camera also get very hot in just minutes, something to bear in mind when creating an enclosure to house the camera making sure there is plenty of ventilation.There is no doubt the camera is very capable and reaches its specification, it has real active autofocus and a fair size lens too which you can see move as it focuses. It is quite high priced but other 4K webcams vary dramatically in quality and price which puts this camera in a midrange point.The downside to this is the clarity of the picture, it is far from what I would have expected no matter how much I adjust the focus. From my window I can clearly see a car number plates across the road, with this camera I cannot, even with finely adjusted focus I could only make out a few letters and maybe that was only because I knew what they were beforehand. In comparison, my phone set to the same resolution but with much smaller lens had a much brighter and clearer picture, the number plates were clearly visible, (hence blanking them from the uploaded image).Not really impressed with the image clarity

By the time this arrived for review the product was marked "Currently unavailable" so I'll keep this brief.This is a UVC-compliant plug and play webcam with autofocus. It is delivered in a small box with a set of Windows-specific instructions. I don't use Windows but tried it on both a Mac and Raspberry Pi, both of which it should work on.And it does.On Rasbian it is reported by libcamera-jpeg --list-cameras as a "4K USB Camera: 4K USB Camera [3840x2160]", offering 10 different resolutions ranging from 320x240 to 3840x2160. Using fswebcam I was able to take images at the stated resolutions. Autofocus worked well. Images were quite markedly overexposed and would need post-processing to be acceptable. In addition, and more seriously, there were image artefacts, with lines across parts of the image, or heavily pixelated areas. These could not be easily corrected.On a Mac I managed to take images and videos using - respectively - Photobooth and Quicktime. By default the former were 720x480, poorly exposed (overexposed again, probably by 1+ stops) but well focused. Quicktime movies were also overexposed, though perhaps by only 1 stop, but focus was again good. QT movies were 1280x720 and H.264 encoded.It also worked with Zoom on a Mac. Depedning upon your Zoom setup the field of view of the lens might be too wide. It is significantly wider than the integral webcam in a Mac laptop or desktop monitor, and wider also than my current webcam. To give a better proportioned 'head shot' you have to sit uncomfortably close to the camera.At the offered price of £89 this is not good value for money due to the image artefacts and overexposure. The autofocus is pretty quick and works quite well, but doesn't make up for the other shortcomings of the camera. The absence of any detailed instructions for platforms other than Windows (there is some Mac troubleshooting info for mirrored images etc) loses it a star, as does the image defects and the overexposure.I'm going to try and manually tweak the image quality and exposure using libcamera on the Raspberry Pi and will report back if I end up with something more usable.

This web cam was easy to set up, attaching it to an iMac system (ultimately it’s going on one of our Raspberry Pi 4s, but for testing purposes I set this up with my iMac). I followed the instructions in the little supplied instruction booklet for using this with QuickTime, and it connected without issue.The image quality is really very good, with clear, crisp image and true to life colours (as long as there isn’t light coming in through a window directly in front of this, which messes with the saturation).The camera module comes with a lens cap, and has a 1m USB cable. The module is designed to be mounted into a device, but doesn’t come with any fixingsOne thing I didn’t like about this is that the cable smells quite bad. Not normally something I’m conscious of in electronics devices, but this has quite an acrid, chemical smell to it that lingers on hands where they’ve been in contact with it. Hopefully this will dissipate over time.