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Updated for DPP 3.0.2 on August 13, 2007. Users of Canon’s Digital Photo Professional (DPP) should be aware that previewing an image displays a lower-quality version than the final processed version in actual-pixels view. Even with the Operating Mode preference (see below) set to Quality Priority, Digital Photo Professional does not display the same quality image as the final processed image, making an assessment of the fine details of image quality problematic (within DPP).
This problem is present in version 2.0.3.7 of Digital Photo Professional. It might or might not be present in later versions. Most likely it is present in earlier versions as well. The inaccuracy appears to be limited to color aliasing. Here is an example of the issue:
Quality isn’t Quite unexpectedly, setting the Operating Mode preference to Standard or Speed seems to improve things. There does not appear to be any difference between Standard and Speed in this example.
One might reasonably expect that by version 3 such problems would be fixed. Unfortunately, the problem looks just as bad, if not worse. This is with .
Such problems are particularly maddening when using EOS Utility to verify critical focus before taking a series of exposures (camera hooked to computer). The defective preview makes it harder to judge whether critical focus has been achieved, an ironic problem since the primary design goal of the Live View functionality is to verify critical focus. Whether these results are peculiar to every image, or just specific ones, has not been investigated. Users of DPP should be aware of this issue if they are making judgments about the fine details of image quality. Contact: email diglloyd a comment on this article.
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