DVR Security Forum

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We start getting returns on the F521E. The cameras are over-heated and cause burning mark on the lens. We found that this batch is still using the foam-type ring not plastic ring. Please see the following images.

We test the other three with POE and find them with the same foggy images.

Reference URL's

DVR Security Forum: http://www.dvrsecurityforum.com/index.php
F521 foggy image: http://www.dvrsecurityforum.com/showthread.php?tid=818

DVR Security Forum

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