IEights 260fps Variable Focus Camera Optical Zoom Webcam,2mp FHD 1080P Varifocal Web Cam Manual Zoom Lens Webcamera,Raspberry Pi Mac Vari-Focus USB Web Camera,Close-up Monitoring Varifocal Cameras

This review is for the 2.8-12mm zoom version of this camera. As shown in the picture, I am able to get a decent view of my golf driver head at impact with my 95 mph driver swing speed. I used free PC software from Kenovia to get this picture. The key is to get a lot of light illuminating the driver head. The camera's sensor has an electronic shutter that you can set very short to freeze the action, but you need a lot of light. I used 9000 lumens (three 3000 lumen spot light bulbs). In the software, the setting for "Exposure" sets the shutter speed, and "Gain" sets the brightness. You want "Exposure" to be low enought to stop the action. Set "Gain" to see the image. The higher the gain, the brighter but grainier the image. If you can't get a good picture, you probably need more light. I used 640 x 360 resolution as that gives the highest frame rate. I first tried 6000 lumens of light, but the picture got better with the 3rd bulb.

Not too much to say about this camera that hasn't been covered by other reviewers. It connected just fine and I had no problem with drivers, power, etc. One thing that surprised me is that it is quite difficult to change the frame rate. The cameras wants to record at 60 FPS at high re, 120 FPS at med res, and 260 FPS at low res (640x360). You're pretty much stuck with that. As far as software, just use VirtualDub in AVI capture mode. Works perfectly and drops/adds very, very few frames (less than 0.1%). As for the quality of the picture, we have to remember that the effective shutter speed is less than 0.004 seconds (1/250 second) for a tiny imaging device at 260 FPS. The lens that comes with it is OK quality, but it's a zoom lens with manual aperture and focus. I switched to a similar, but larger, lens that came with another USB camera I had and the image quality/brightness/contrast improved significantly. I then switched to a 12 mm fixed focal length CS mount lens (i.e., a faster lens) and got an even better image. It's still not social media quality, but it's much more acceptable. Keep your eye out for new or used CS mount lenses and grab a few of different focal lengths. You'll get better results than using a smaller variable focal length lens like the one that comes with the camera.

These cameras are junk. Finally hooked them up after 2 months... and i get nothing but a blurry image...

I purchased the camera to record golf swings. The frame rate is quite good — the shaft isn’t blurred and remains visible — but unfortunately, the lens doesn’t deliver sharp image quality. It’s possible that I simply received a defective lens.

The product page listing is long and confusing, so here is a simplification: -This is a 1080p 60 fps 4x manual zoom, manual focus webcam. -The higher framerates listed are only at lower resolutions. -Resolution is adjusted by downloadable software detailed in the manual The camera has three adjustments: zoom level, focus and aperture. The aperture restricts light and can be completely closed to act as a second lens cover. There is also a plastic lens cover included. The depth of field of the focus when fully zoomed is pretty small, similar to but not as little as a microscope. You will need a small flathead screwdriver to adjust the screws that hold each of the adjustment rings on the lens. The camera has a 1/4" hole for mounting. The housing is well constructed and sturdy. The camera has a short cable plugged into a lengthy extension. The focus can be directed to the camera lenses themselves, where I noticed some tiny flaws. I was unable to clean or remove them but they did not seem to impact image quality. The 4x zoom gets you closer into things than you might expect. As a result, this camera would be useful for demonstrating fine details of activities. For anything involving people, the limited depth of field of the focus zoomed in will make it hard to use.

This is a great choice of webcam to pair with golf training software. I use it with Trackman Studio to analyze golf swings. The quality the camera is capable of is better than the video, but that is the setting we use for maximum fps. The lens is quite good with fine focus and iris adjustments. Camera was plug and play, so very easy to get setup.

My first one was defective, but they replaced it promptly and this is a good quality, optical zoom/focus camera. It has a fast frame rate and would really work well for brocasting over the net. As a webcam, it is not designed for up close and does not perform well in low or medium light, If your streaming live video and/or recording with studio quality lighting, this camera really performs well for the price.

Had a hard time getting the whole swing in view. Video quality wasn’t great and I believe you’re only going to see high frame rate on the lowest quality video.