Summary: This webcam has superior hardware for its price and is a great way to Skype in 1080p. However, the Logitech software is atrocious if you want to take still photos or record video -- over a year and a half after it's release they have still not made it compatible with 64-bit Windows systems. Buyer beware!
Summary: Picture only good up to 8 ft away. My backgrounds are all blurry. Yes they are mountains a 1/2 mile away but you'd think this cam would focus everything in the picture like a normal HD camcorder does. The subject in the foreground is good, though.
Summary: Bought two of these to upgrade a home studio where I live-stream the production of music, and record additional camera angles for an enhanced multi-cam version (closeups of guitar necks, etc.) for posting to my website. I chose the c920 because of the optics, but especially because it had a hardware h.264 encoder. I am already running several computers, one to record music with, one to stream, etc. The last thing I need is for my computers to be doing anything else.
Summary: If you are going to use this for Skype/chat, I think you'll be quite happy with this purchase. However, if you are going to use this camera to keep an eye on things, see the following: This camera does record 1080p manually. This camera does NOT record 1080p when motion activated. Numeric resolution choices are not available in Logitech's software when using motion activation. You can choose from 'lossless' at best, which outputs a 600x800 video - not even 720p.
Summary: The hardware compression on this camera is simply awful and there's no way to adjust it. For a Skype call, it is passable but if I want to record videos at my desk, it's pretty awful. My iPhone 3gs can record better video. Also, microphone sensitivity is really poor. You have to be right up close to the camera to get clear audio. Disappointed.
Summary: Logitech does not provide linux support for this product. That's right! If you buy this product, you can't use its full potential on your favorite operating system. Keeping that in mind, there is an open source driver that works with it, but without any notable contribution from Logitech. Logitech's website doesn't provide any information on this. The hardware is great, but Logitech support for webcams sucks.
Summary: The picture is sharp in both HD (720p or 1080p)modes, but it is REVERSED--flipped horizontally. What should be on the right is now on the left, and vice versa, and the only way to get the picture orientation correct is to select a lower resolution mode (360p or 480p). Logitech Support is only marginally helpful and could not correct this problem for me or duplicate it in their lab.
Summary: Where to begin? Low light usage = horrible Software = horrible Value = horrible Auto settings = horrible Manual settings = maybe I don't know why webcams of this price have less capability than forty dollar "point and shoot" cameras (and I mean their video). I rate this webcam only slightly better than one's that cost fifteen dollars. Thus the two stars. It's probably OK for Skype type stuff but so are MUCH cheaper one's.
Summary: Camera works well enough. Problem is with the software. At times, the camera is "ON" and I can't shut it "Off". I have to reboot the host computer to get the camera to turn "off". At other times, the camera is "Not available" as it is in-use by a unnamed application. (A glance of the Webcam control panel shows the camera is not being used.) If I re-boot host computer, problem solved. I have switched USB ports and re-installed the software. still problematic.