Focusing Tutorial

Author: John Honovich, Published on Oct 12, 2012

This tutorial explains the fundamentals of focusing including:

We focus on varifocal lenses, the most popular and commonly used type for professional surveillance cameras.

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focus control top

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focus profile

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manual iris lens

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How ** *****

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Where ** *****

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Field ******

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Test **** *********:

**** **** * ******** **** ***!

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