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Posts: 1
Registered: ‎03-02-2016
Accepted Solution

C100 MKII Auto Iris

I read the following comment about the C100 and would like to learn more about the Auto Iris Function on the C100 MK2 which I'm planning to invest on. Please refer to the comment too in your reply. Thank you


"I happily own 5 L series (usually Mark II) lenses: EF 100-400 4.5-5.6 L II, EF 70-200 2.8 L II, EF 16-35 2.8 L II, EF 100 Macro 2.8 L, and EF 24-105 4 L. Imagine my disappointment when I found out my lenses are not supported by the Auto Iris Function of this unit. In order to adjust to different lighting conditions one has to continuously press the "Auto Iris Button".

I have found myself fumbling with the settings and missing shots. The supported lenses are referenced on page 65 of the manual and all are lesser glass and there are only 4 of them"

Product Expert
Product Expert
Posts: 514
Registered: ‎10-17-2012

Re: C100 MKII Auto Iris

Hello Tiagoespsanto

The reference in the manual to those four lenses is, I believe, in reference to Remote Operation using the Browser Remote.

The physical button marked 'Push Auto Iris' works in such a way to adjust the aperture to obtain optimal exposure as long as that button is held down, not repeatedly pressed as you mention.  This may very well have been the cause of the issues that you mention.  

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