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Strange settings when using auto ISO

gwinegarden
Contributor

I was just looking at some photos that I took recently and found some of the picture very noisy.  When I looked at the metadata, the settings were a bit strange.

 

I was using a t5i with the Canon 55-250 IS STM lens.  The camera was set to Apeture priority @ f11 and Auto ISO.  An example of the settings, on the noisy photos, was 1/400 with ISO 6400!!  This seems odd.  I can see why it might pick that ISO at 1/400 but why choose that speed?  The others had similar settings.

 

On other photos, all seemed more correct e.g. 1/100 @ ISO 320 & 1/160 @400.

 

To me, the issue is that the camera is selecting too high a shutter speed, at certain times.  I do not know if Auti ISO has anything to do with it.

 

Any thoughts would be, greatly, appreciated.

 

22 REPLIES 22

Studying EXIF data using exiftool doesn't show any place where there is an entry for Image Stabilization.

John Hoffman
Conway, NH

1D X Mark III, M200, Many lenses, Pixma PRO-100, Pixma TR8620a, Lr Classic

It has no bearing in this discussion anyway.  Whether it's there or not.

EB
EOS 1DX and 1D Mk IV and less lenses then before!

I'm sorry.  When was it that you decided the focus of the discussion?

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