jayadeff wrote in post #14035602
I guess I should have been more specific. I meant, how many working professional wild-life photographers (not hobbyists) use APC-C cameras? I know many use 1D APS-H cameras. And photographers who are paid by Canon to extol the virtues of the 7D don't count.
As a working professional sports, wedding/portrait, and commercial photographer who doesn't have a big budget for equipment, I still prefer to use an older 1DMkIIn and 5D over any APS-C camera (even the 7D). There's a big difference in image quality in my opinion.
Given that Canon has announced that APS-H is effectively dead, it's a choice between cropping from full-frame, or shooting APS-C.
It's all about the pixel density, and the number of pixels on target. A full-frame body would need to have 27MP to get as many pixels on target as a 1D4, provided the target fits within both the full-frame and 1.3x crop frames at the same focal length (going longer is rarely an option, since wildlife photographers are uually already pushing the focal length limits as it is). It would need 45MP to provide as many pixels-on-target as a 7D, provided the target fits with the APS-C frame at a given focal length. Both are very common scenarios in wildlife photography - a subject small or distant enough to fit into a 1.3x or 1.6x crop frame, even when using long telephotos with a teleconverter.
The 45MP body would be ideal, provided it had the frame rate to keep up with a running animal to capture the key moments (e.g. a kill, or a diving bird catching its prey). But, if a high-enough frame rate isn't feasible, an 18MP 1.6x crop isn't bad either. After all, crop bodies are getting better and better, and the 7D's softness shouldn't be automatic condemnation of all crop sensors - the D7000, with only 2MP less than the 7D, produces outstanding results. A 27MP APS-H sensor would be even better, as a compromise in size, but Canon has basically killed off that idea... Either way, it's better than shooting full-frame 18MP for a 10MP APS-H crop or a 7MP APS-C crop...
After all, wildlife ueed to be shot on 35mm colour film, which is very similar to current APS-C in detail resolved.