LifeCam Studio on OS X El Capitan 10.11 iMac 2005 PERFECT!!!

LifeCam Studio video perfection on 2005 iMac 23” El Capitan 10.11.
Note 1: On rare occations, allow 10~15 seconds for a large adjustment to take effect. Be patient.
Note 2: After about 20~25 minutes, Webcam Settings video window starts flashing on and off continuously but DID NOT DO THIS IN 1.5 HOUR ooVoo VIDEO CONFERENCE immediately afterwards.

Guessing; The flashing on and off may be Webcam Settings way to remind user to turn off that video window before using your video application. This makes sense but I don’t have the experience yet to know for sure. I only know that it did NOT cause any problems within my video conferences where the LifeCam performed flawlessly with the auto focus.

MDGrissom about Webcam Settings