11-22-2010, 08:32 AM
Taking the other perspective, looking through those shots too, I counted around 15 which I'd say were heavily biased towards a crop sensor body, and none where a FF were essential. I didn't realise the page was endless for a while, so I think to saw around 50 or so before that point. In a lot of those cases, a focal length of 400mm or longer were used.
On aperture and pixel level diffraction limiting, just remember not every pixel needs to be perfect all the time. DoF will often be a bigger enemy than diffraction, and I regularly use f/8-11. You're going to have to be a seriously obsessive pixel peeper to see the difference in diffraciton between that and f/5.6 say. Also don't forget in the real world, the diffraction limit isn't fixed anyway, and varies with the frequency of light. Calculators assume a mid value around green, but red would already be limited at that point and blue can go on for a while longer yet.
On aperture and pixel level diffraction limiting, just remember not every pixel needs to be perfect all the time. DoF will often be a bigger enemy than diffraction, and I regularly use f/8-11. You're going to have to be a seriously obsessive pixel peeper to see the difference in diffraciton between that and f/5.6 say. Also don't forget in the real world, the diffraction limit isn't fixed anyway, and varies with the frequency of light. Calculators assume a mid value around green, but red would already be limited at that point and blue can go on for a while longer yet.
<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.