1DX II max ISO less than 12800 not working for movie

[ki3355]

Did anyone notice that even you set the max iso to less than 12800, like 6400, 3200, etc. in "iso speed settings --> Range for 4k" setting, the actual max iso still go up to 12800 while recording movie with auto iso.

Is there any workaround to set the max iso less than 12800 for movie?

Thx.

[Waddizzle]

It sounds like may have used the wrong setting.

Video modes should have their own set of menus. They only appear when the camera is in video mode, most likely.

[ki3355]

Yes, I mean I'm using the video menu. With iso speed settings -> Range for 4k setting max iso to 6400, recording movie with auto iso still go up to 12800 no matter i use M, T, A, P mode.
But if i set max iso to 25600, it did go up to 25600 rather than 12800.

[Waddizzle]

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@ki3355 wrote:
Yes, I mean I'm using the video menu. With iso speed settings -> Range for 4k setting max iso to 6400, recording movie with auto iso still go up to 12800 no matter i use M, T, A, P mode.
But if i set max iso to 25600, it did go up to 25600 rather than 12800.

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Hmm, it still sounds like you are misunderstanding something.  The settings seem to have a few caveats associated with them.  Movie shooting in M mode has different Auto ISO behavior than P, T, or A modes.  

http://gdlp01.c-wss.com/gds/2/0300023012/04/eos1dx-mk2-im4-en.pdf

Check out remarks about Movie Shooting with Auto ISO pages 299-302 in the Instruction Manual.

[ki3355]

Thanks Waddizzle.
Ok, so there is no way to override the default auto iso range 100 to 12800 for movie, but only available for photo.

[Waddizzle]

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@ki3355 wrote:
Thanks Waddizzle.
Ok, so there is no way to override the default auto iso range 100 to 12800 for movie, but only available for photo.

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I believe that is the default range for 4K video modes.  But, page 302 appears to suggest that you can set a narrower range only when you are shooting in A mode.

[ScottFiore]

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@ki3355 wrote:

Did anyone notice that even you set the max iso to less than 12800, like 6400, 3200, [links removed per forum guidelines] etc. in "iso speed settings --> Range for 4k" setting, the actual max iso still go up to 12800 while recording movie with auto iso.

Is there any workaround to set the max iso less than 12800 for movie?

Thx.

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The settings seem to have a few caveats associated with them. Movie shooting in M mode has different Auto ISO behavior than P, T, or A modes.

[ki3355]

Yes, I cant find the way to limit the auto iso to 6400 in any mode including M mode.