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Lock Exposure XF405

nilly
Contributor

XF405.  I don't want Manual Exposure, I need to be able to let the camera adjust itself, then LOCK all of the exposure functions: aperture, shutter speed and gain, while leaving Auto Focus operating. So if a bright object enters the frame the picture doesn't darken. I've tried reading the manual and fiddling with assignable buttons, custom button etc, and I cannot find a way to do this. 

2 REPLIES 2

IamintheUK
Rising Star
Rising Star

You can do this in the Manual Exposure mode using Momentary Automatic Aperture. Having a button assigned to this you press and hold  the button so the camera adjusts the exposure. When you let go of the button it will stay at that exposure.

Look at page 70 of the manual..

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EOS C100 mk2 with the Canon EF-S 18-135mm IS STM and EF-S 24mm STM lenses - Zoom H2n - Dell 8700 i7-4790 3.6Ghz, 24GB Ram, Win 10, Nvidia GTX 1060 6GB - DaVinci Resolve Studio 19.0.1 - Blackmagic Speed Editor - Presonus Faderport 1 - DJI Ronin S

Thank you for your reply. I assigned a button to Push Auto Iris, but it doesn't seem to work. Is this because I am using external recording on a ProRes monitor/recorder? If so what can I do?

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