Lens Iris Tutorial

Author: IPVM Team, Published on Dec 19, 2016

Cameras, like humans, have irises. However, cameras have five types of iris options - fixed, manual, auto, P iris. In this tutorial, we explain the tradeoffs of each, how irises work and how they relate to shutter speed.

Controlling Light

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****'* **** * **** **** ***** **** ****** **** ** mostly ******:

iris closed opened

*** ****'* * ****** ******* *** ******* ** *********:

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Auto **** / *-**** / *-**

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  • *-** ****** *** *** ** ** ****, ********* ** **** *** ********. ***** ****** *** ******* to *-****, *** *** ** **** ******* *********** **** ***** supplies **** ******** *********** ** *** ******, **** ******* ** focus, ****, ********** **********, *** ****, ******* ** **** **** control. *-** ****** *** ****, **** **** ******* ****** *******, and *********** ******* ** *-**** ** ***** ** **** *******.

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Fixed / ****** ****

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****** **** ****** ***** *** **** ** ** ********** ** manually ******** * **** ** *** ****. ****** *** **** is ************ **** *** *** *** **** ** *** *** way ******, ************* ********* ********* ******* ****** **** ****** ****** fully ** **%+ **** ** ******** *** ***** ***********. ****** iris ****** *** ******** *** ***** **** ** **** ********** applications.

What ** ***?

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** *** *******, ***** ********* ** ******* *************** ******, ** have *** ***** * ***** ********** ** ***** ******* ******* iris *****. *** ****-**** **** *************** *** **** *******.

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Test **** *********

**** ***** ******** *******.

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