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Optics of door security viewer

Optics of door security viewer - Physics Forum

Optics of door security viewer - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


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Old 07-11-2006, 03:00 AM
Jeff
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Default Optics of door security viewer

2 wrote:

Who knows what she wants and where she wants to shop. Edmiunds
Scientific springs to mind though.

Are you suggesting the OP

F = focal length / Lens Diameter

Google for more info. Newsgroups are best used after the OP has googled
around a bit first. You are more likely to better know how to ask a
better question and more likely to get a more informed answered.

Jeff
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