Quote: At low ISOs, the 645D does have a slight advantage over the D800E in terms of resolution, though once we tried scaling the photos from both cameras down to about 20 megapixels, the difference in resolution was hardly discernible. At high ISOs, the Nikon has a clear advantage, and it also seems to have a much wider dynamic range at all ISOs. This is surprising, considering the fact that the Pentax medium format sensor is almost twice as big physically as the Nikon full-frame sensor (age might be a major factor here).
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Nikon D800E vs. Pentax 645D - Introduction - PentaxForums.com Quote: At low ISOs, the 645D does have a slight advantage over the D800E in terms of resolution, though once we tried scaling the photos from both cameras down to about 20 megapixels, the difference in resolution was hardly discernible.
Two points, at high ISO the 645 has a slight advantage.... usually your best images are at lower ISO's so unless I'm missing something the 645 beats the D800e, if only slightly, in the competition for the best overall image...
Second point if you reduce a D800e image to 3000 pixels across, you can't tell the difference between a D800e and a K-5, so that's 6 MP I'm guessing... Reducing resolution reduces lw/ph, nothing surprising about that.
To me, I'm tempted by cameras like the Merril DP2 etc, that may not have good performance at high ISO but give you the best possible image overall, not in a specific category like high ISO or low light, but being the absolute best has to count for something. The D800 may beat the 645D in your opinion, but, other opinions may differ and are just as valid given the facts presented. In some circumstances the 645 beats the D800 as in absolute image it's capable for producing. Not that it's an issue I think is worth mentioning either way, except when someone else presents a narrow interpretation of the facts as gospel. Some people just want that medium format look, the way some people just want that FF look. Who beats who... you must have worked as a publicist for the WWF in a previous existence. That's sensational. I feel like I'm reading the national enquirer.