brainiac wrote: veroman wrote:
>...I want to see a Canon crop camera that will let me shoot at f/13-16.
Holy crap - I didn\'t know those apertures were disabled. They never mention the limitations in the press releases. Do you think a firmware hack might re-enable f13-16?
Diffraction, my friend, diffraction. The greater DOF at f/13/-16 is almost totally negated by the smearing at f/13-f/16. I can shoot f/13 with my 1Ds II and 5D, but not with my crops. Let me put it this way: I CAN shoot at f/13/-f/16 with my crops, but I don\'t want to.
>I want to see a Canon crop camera with no AA filter.
This is a misconception. There is no disadvantage to an appropriate scale of AA filtering, and Canon has always used filters which blur only on the appropriate scale. In fact, with 18 Mpixels and the correspondingly tiny pitch, the AA filter on this camera is certain to be the smallest scale (i.e. \'weakest\') AA filter in any Canon DSLR to date. It never was a problem, and now it\'s even less of a (non) problem than ever. Hot-rodded cameras show more moire, and the apparent increase in detail is an illusion due to the fact that inter-pixel contrast is higher before sharpening. The only thing that heightened micro-contrast is showing you is the shape of your pixel grid - it\'s not recording any more data from the scene itself. I hope your AA filter-less camera never comes, because AA filters are there for a good engineering reason, even though the tinfoil-hat brigade don\'t understand the science of it.
I have shot filterless and filtered. The science and technology of it all is one thing, the processing and printing is another. The difference is night and day in many instances. As far as moire goes, this has been a problem since forever. I ran into it a hundred times over in the ad business beginning in 1970. I have moire problems with my 5D (filtered) and had moire problems with my old D60 (filtered). I had moire problems with my old Kodak SLR/c (no filter), but they were no better or worse than with my 5D. I\'ve also spent some time with a Leica M8 (filterless) and had few moire problems with that cameras as well.
Sep 02, 2009 at 08:16 AM
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