KachiWachi
Distinguished Logi Legend
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Registered:
05-22-2006
Welcome to the New Logitech Community Webcam Forum Jamie! 
This question has come up before. Logitech considers this proprietary information, and will not release it to the general public. 
Best bet is to look for third-party magazine tests of the cameras in question, and see if they measured it.
Good luck.
KachiWachi - Webcam Forum Guru (2002), Logi Legend (2007), Distinguished Logi Legend (2010), QuickCam® Team Forums (2007)
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