HELP! 7D MkII exposure issues

strikerwy

Canon Rumors Premium
Oct 12, 2012
23
0
4,831
www.timdoolinphotography.com
Hi all,

I've been using my 7DMkII with a Sigma 300-800 lens, sometimes with a matching Sigma 1.4x converter. Regardless of whether the converter is in use, when shooting bursts, I'm encountering frustrating levels of exposure inconsistency. The following images are untouched and unmanipulated, straight out of the camera, opened in Lightroom, and exported as jpegs. They were all part of a series or burst of images and feature the exact same exif data. The camera says the exposure is the same, Lightroom says the exposure is the same, yet it is obviously NOT. This is happening to about every 3rd image in a burst. Any thoughts? Is there a setting I'm missing that needs to be tweaked?

Some of these images are poor quality, but they represent the exposure issue quite well.

A few other details: Shot in AV mode, servo autofocus

I'm all ears for any thoughts on what might be done to remedy this issue.
 

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