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Posts: 10,908
Registered: ‎12-07-2012

Re: 1DX ii Minimum shutter speed in AV mode

[ Edited ]

"I would suggest resetting camera to factory and clearing all custom settings ..."

 

I advised this a long tome ago.  It is what you need to do next and first off. I have only used a 1DX Mk II a few times but I use my 1DX  all the time. Unless something was drastically changed between the two I don't see what you are. Either that or the ef 500mm f4 is a unique lens and I don't have one to try for you.

The biggest lens I can put on my 1DX right now is the Siggy 150-600mm S.  I set the Av to f16 and ISO to 100.  The camera selected a SS which would be impossible for me to accomplish a sharp picture (1/30, 1/15, etc). Well below the 1/600 you would have expected if your thoughts were correct. 

 

When I set it to auto ISO (min ISO to max ISO) and had good light the 1DX did seem to try and stay at 1/500 (600mm lens) which you might expect.  However, when I pointed it to a really dark place the SS went very slow as expected. So slow you could not get a sharp picture. Do the reset.

EOS 1DX and 1D Mk IV, along with less and less other stuff.
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