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 ******

*** ******* ******* **** ******** ** *** ***** ** **** cameras *** ***** ********* ** ****, ********* ** ***** ****** often *******. *** *********** ** ***** *** ***** ******** **** harder **** ***** ** ** ** ****** *****. ****, ** cameras, ****** ******, ********* ** *** ******* ****** ** ***** monitors. ****** *********** ****** ************ **** ******* *** ******.

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

**** **** * ******** **** ***!

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