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Problems with exposure

TurtleDownUnder
Contributor

I have recently bought a new Canon 5D mark IV and am having problems with exposure.  I am using an older EF 24-105 lens. I have experimented with different metering modes and still seem to have the problem.  Two photos taken back-to-back with exactly the same settings and the same field of view have dramatically different exposures.  One will be just fine, the next completely blown out.  See an example below:

 

300A0017.JPG

ISO 320  1/400 sec f/14

300A0017.JPG

ISO 320  1/400 sec f/14

 

Any ideas, suggestions.  Am I doing something wrong or is there a problem with the camera and/or lens?

13 REPLIES 13

ebiggs1
Legend
Legend

"Any ideas, suggestions."

 

Yes, your lens did not stop down.  Simple.  Are you using high speed shooting mode?

 

Wait, wait, did I hear somebody say "light flicker"?  Smiley LOL

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


@ebiggs1 wrote:

"Any ideas, suggestions."

 

Yes, your lens did not stop down.  Simple.  Are you using high speed shooting mode?

 

Wait, wait, did I hear somebody say "light flicker"?  Smiley LOL


No, you did not.  You’re hearing voices in your head again.  Smiley Very Happy

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"The right mouse button is your friend."

Peter
Authority
Authority
Then it sounds like a stuck aperture. Some 24-105/4L IS have issues with a cable, as written before.

"...it sounds like a stuck aperture."

 

The aperture can't be stuck.  It might be sticking but since it works some or most of the time it can't be stuck.

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