pknight wrote in post #17663391
And to save money....
The number of used 7DII bodies here and elsewhere is a tiny fraction of those purchased new. I suspect that you are correct, and that those who purchased a 7DII hoping for something it was never intended to be were disappointed. I also suspect that many of those for sale used are from people whose criteria for a camera include pixel-peeping satisfaction, rather than the qualities that make the 7DII so useful to many of us.
Granted, for anyone who can get close enough to their subject or has the focal length necessary to use a bigger recent sensor, 7D2 IQ is going to be somewhat inferior than the larger sensor at the same exposure, but people who think that a 1D3, 1D4, 5D3, or 5Ds gives better results in focal-length-limited situations are just fooling themselves, IMO; they are not doing rational, equitable comparisons. I left out the 1Dx, because it does, in fact, have slightly less read noise per unit of sensor area of the 7D2 at high ISOs, but none of the other Canons do. It has more noise than the 7D2 in focal-length-limited situations at low ISOs, as do all the other Canon options.
The AA-filter-less 5Dsr gives higher pixel contrast than the 7D2 with the same size pixels, so it has some utility over the 7D2 for those who like the aliased pixel look with very sharp optics, and even for those like myself, who don't like aliasing, but appreciate the lack of an AA filter when using optics in the small range where AA filters add visible blur, but are not necessary, such as using a sharp telephoto lens with a 2x TC or a 2.8x stack.
Those are the only ways in which any other Canons are superior in IQ to the 7D2 when they are cropped to APS-C; more acuity with the 5Ds, and slightly less read noise at high ISOs with the 1Dx; all the other cameras give lower IQ in focal-length-limited situations at all ISOs (the "I" in "IQ" referring to the subject displayed at the same visible size). There are disadvantages to those cameras, too, however - 1/3 stop more noise at all ISOs with the 5Dsr, and much less resolution with the 1Dx.