Summary: This camera was apparently what was causing a sampling rate problem for me on Skype. About 1/2 the time, my voice would sound like Minnie Mouse, until I disconnected and called back. Very annoying. My newer more expensive C920 Logitech Webcam has no such issues.
My unit worked great. To the folks who complained about focus
Wizard of Boz, Amazon
23 March 2015
Summary: My unit worked great. To the folks who complained about focus, I suggest you RTFM. In the "getting started guide", available on-line, part number 1 on the parts drawing is called a "manual focusing ring". It's a bezel surrounding the lens. You turn that ring to focus the unit.