I'm not surprised that the P45+ outclasses the 1Ds3, Edumd. It's fortunate you didn't compare the 1Ds3 with a P21 because then I might have found myself appearing to be arrogant by arguing with a guy who has a PhD .
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Well, actually things are more complex - as owners of all this equipment may be realizing. We're looking at a total system, not at some "ideal" pixels. Here is a breakdown of my results:
1. Surprise: Mamiya focus is as good as or better than the Canon 1Ds3 samples I is used, when the camera is pointed at a real scene, using usual studio ambient illumination to focus. My impression here and in the past is that real-world performance of the Mamiya focus for portraits is consistently good.
2. Surprise: Canon skin texture *on the same number of pixels* is now just about equivalent to that of the P45+. This is a significant improvement as skin texture on the 1Ds2 was sh**.
3. Color of file and "processability" of file is still better with the Phase. That's no surprise
4. Surprise: ACR does a really excellent job now with the P45+ files. If ACR is as good with every camera, C1 is headed for the scrapheap.
5. Surprise: The pixels and focus out of the trashy 80mm Mamiya lens are as good @F14 as those out of the Canon, *on a pixel-by pixel basis* under studio conditions ! Don't bother to mount a tele on the Mamiya, if you're in a hurry and it's a subject within a few meters, cropping is perfectly ok.
Of course, with the individual pixels on the Phamiya still superior to those on the Canon under studio conditions, having twice as many does help, too -but the above comments apply to images formed with the same number of pixels. This test was done with the P45+, which has no microlenses, I'd expect the P30+ to be a bit less sharp.
Edmund
