4k USB Camera with 5-50mm Varifocal Lens

I tutor jewellery making on line . This camera is superb. I can zoom in very clearly to show individual size 15 seed beads and out again for overall shots very easily . I definitely recommend this camera.

A 4K ultra-HD USB webcam, it’s a zoom webcam with a 5-50mm optical varifocal lens. It’s a USB 2.0 plug and play camera for laptops, desktops, and is suitable for video web conferencing, live streaming, online classes etc and can be used on Mac, Windows, Linux, Android, Raspberry Pi, operating systems etc. when plugged into my MacBook Air M2, and I needed a USB A to USB C adapter to do this, it was recognised within seconds. It comes with a 3mtr USB cable, it’s plug and play, so no need for any extra software or drivers, but it does need certain programs relating to web cams, to be installed on your device, eg FaceTime, QuickTime, Zoom etc and any other programs that use a webcam. It’s important to note, that it works really well in low light. Unfortunately, it doesn’t come with any fixtures to mount the camera onto your device or platform, it does have common tripod ¼ screw holes, on either side of the camera. Strangely though, it does come with raw plugs, screws and an Allen key, for what reason is beyond me 🤔, as there is no way of mounting it with these items. The camera comes with a lens cap and the zoom and focus rings are locked down with a tiny grub screw. Loosen the screws off slightly, you can do this with your fingers, and you will be able to adjust clarity and distance on the camera, then lock the rings back down by tightening the screws again. The aperture ring in the centre of the other two, is not locked down. All in all, a beautiful camera, I just wish they would have included some mounting equipment.

I thought this would be a nice little fixed view camera for YouTube work but it's not. Focussing is difficult and the FOV was not ideal. Colour temperature was a bit washed out. Nicely built, glass lenses etc, but overpriced.

I got the WOW effect. The camera image is crystal sweet and with perfect white balance without any tweaking in software. Rhere is plenty options to place it behind the player at the oche or where i finally placed it

This is a small but very solidly built camera, and is surprisingly heavy! Comes with a really long USB cable with a thick cable, giving lots of flexibility in how to place the camera. I plugged it into a windows 10 PC and it worked immediately with no problems. Really sharp picture quality. Everything is manual - focus and zoom rings have finger lock screws, but the appertuare ring does not. Only odd thing is that it comes with screws and wall plugs to fix to a wall - but there is no wall mounting bracket. There is just a standard trips mounting screw.

This is a curious device. It is based upon a good quality Sony chip with decent low-light capabilities and high resolution and comes with a 10-1 manual zoom lens. It is USB plug-and-play with most operating systems. But it is also very minimal - it comes without any form of mount, but it does have standard 1/4" screw holes, so you could attach it to a tripod. The lens has three rings to adjust zoom, aperture and focus but these have no markings and are very hard to adjust smoothly. The focus is particularly problematic as the control has a very short throw - you wouldn't want to pull focus as you shoot - and focus is critical. The zoom lens, as one would expect on a very low cost camera, is not parfocal, so you have to re-focus dramatically every time you adjust the zoom. All the lens controls - focus, zoom and aperture - seem really intended to be adjusted when the camera is in a fixed position and left. As you can see from the quick test with my cat, the lens is very impractical for most situations. Despite its potential, I am not really sure who or what this camera is intended for - I can't really see it working as a webcam.

Model: USB4K03-SFV(2.8-12mm) This is a relatively simply plug & play camera, which I tested with my Window 10 desktop PC. It comes with a good length 3M cable. The wide angle, focus and brightness are controlled by the three rings on the front. The focus one is quite sensitive, making it slightly tricky to get the focus right. Once in the correct positions, both the focus and wide angle can be locked in place. I’ve used it for Zoom meetings with no issues at all, although it does not have an inbuilt mic and for recording videos. Playback on my 4K@60Hz monitor was ok and although focussed on me, the detail in the background was quite clear as well. However, it did seem to struggle a little with the white walls and ceiling, creating a ripple-like effect. I have attached a still from the video to try and show this. It maybe that I need to play around with some of the setting in the software to correct this. It has screw mounts on the top and bottom for attaching to a tripod and suchlike. The design of it does naturally lend itself to being as webcam, in that you cannot hook it over the top of a screen, but it was fine using it on my desk mounted on a small desktop tripod. It worked with the build-in Windows 10 camera app and with some 64-bit OBS software I had on my PC. Apart from the issue with the white walls and ceiling, it did perform quite well overall. Oner thing I am unable to comment on is the medium to long-term reliability. I hope you found this review & photos interesting, informative, and useful. Thanks for reading.

This is a fabulous quality web camera, perfect for high quality video conferencing. It’s incredibly easy to use and although it’s smaller than I was expecting it’s very heavy and just feels quality. It connects to my computer via a usb cable. The quality compared to the computers built in web cam is amazing. If you need a quality web cam you won’t be disappointed with this one.