[balabollng]

Да кстати... видимо и поиском то Вы не очень пользовались на "проверенных" источниках.

http://forums.quickcamteam.net/showthread.php?tid=1413

The webcam natively does either MJPEG or YUY2 depending upon which mode is asked for and which resolution. The current generation of Logitech drivers export either I420 or RGB modes for you so the driver is doing colorspace conversion (part of the extra overhead)

As the previous poster mentioned, all the exposure controls can be done with the Microsoft driver.

If you need 720p with 24fps support in raw YUY2 then you have to use the Logitech driver. Otherwise, use MJPEG mode for 30fps 720p with the stock Microsoft driver. With the stock Microsoft driver, 720p YUY2 will only support 7-10fps.

If you do need the Logitech drivers and have good consistent light, then you can disable RightLight to get back some CPU cycles.