Avoiding any of the cheap, crappy junk cameras from the Chinese import bargain bin - Here are three quality cameras at a low price between - USD.All are 720p HD cams that will perform well even on older, slower CPUs.Web cams with an adjustable focus ring imply a bit of fiddling.
These discontinued software-based focus cameras from Creative Labs, HP and Logitech simply perform like a fixed-focus model on Mac OS and Linux.
All driverless UVC cams REQUIRE USB 2.0 ports to deliver high resolution at good frame-rates, so make sure your Linux box, PC or Macintosh has USB 2.0 or Super Speed USB 3.0 speed ports.
The same problem occurs with some webcams that may have a still-picture snapshot function or button to trigger movie recording.
Simply touching the camera to enable it knocks it out of alignment - and focus.
Above are simple choices in a UVC compliant web camera: All of these are quality UVC compatible HD Web cameras from Logitech ideal for any budget.
Choose from the razor-sharp premium Zeiss lens autofocus C920 (1080p) with stereo microphones, the autofocus C615 (1080p) with convenient camera tripod mounting hole, or the value-priced fixed-focus C310 (720p) HD UVC compatible webcam with great light management and clarity.
Native, driverless OS-level web cam support is now built into Mac OSX El Capitan, Yosemite, Mavericks, Lion, Leopard & Tiger, Windows 10, 7 and 8, Vista and XP Service Pack 2 or 3, and all modern Linux distros.
Here are three simple camera choices - all UVC compliant - from Logitech.
Looking for a wide-angle UVC web camera appropriate for multi-party videoconferencing sessions?
These high quality webcams are designed for group conference sessions and offer a slightly wider FOV - Field Of View.
Look for good low-light sensitivity to give great image quality for both day AND night lighting conditions.