There are many posts about the \"mazing effect\" and the negative impact it may have on real-world shooting in the master 7D thread but (as others have suggested), it may be a good time to separate this single topic from the master thread and focus on it here?
One school of thought is that the mazing effect manifests itself differently among different copies of the 7D, leading some to believe that this is a Caon QA/QC issue (G1/G2 channel imbalance). Others believe it\'s a design flaw in the sensor itself. Still others believe it\'s a mechanism by which Canon is using to deliver lower noise at high ISO settings, at the expense of leaving more noise at lower ISO settings. Some folks with good 7D copies are not seeing it at all (or minimally). Different converters, as expected, provide different results. Your results may vary.
The bottom line is that in some 7D copies it does seem to negatively affect image quality (leading to \"harsh\" looking images), and also perhaps prevents the camera from reaching its full 18mp potential for those copies affected (sharpening in post may have limited usefulness, as it may exacerbate the maze artifacting, degrading the overall image even further).
This is a VERY hot topic, and the jury is still out on it in many dimensions.
Nov 17, 2009 at 11:11 AM
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