Previous versions of brainiac's message #8143448 « 5D2 150% vs 7D 100% »
brainiac Offline [X]
Re: 5D2 150% vs 7D 100%
Orestis.Ch wrote:
In that case you would be testing the 21mp FF sensor from 5DII against the 18mp crop sensor from the 7D. Very interesting for many users. But the test that the OP did shows here is equally interesting cause we can see the crop-factor\'s advantage (if there is any) over the FF in reach.
Agreed, but this was not introduced as a test to see if or under what circumstances the extra reach of the 7D pays off. The reach test is going to be highly susceptible to lens limitations, so it\'s often not a test of cameras at all. Of course it\'s interesting to procure the very sharpest glass available and see if you can discern the reach test of the 7D, but it is probably more telling to use both cameras for something reach limited like, let\'s say, bird-in-flight photography, and see how well each camera does as part of the system i.e. lens, AF speed/accuracy, body, noise. This test is neither a good reach test nor was it introduced as a reach test.
> I can\'t see any advantage of the 18mp the 7D has over the 8mp that 5DII offers for the same subject, and that is pretty useful to me as a buyer
...notwithstanding that this test is focus-accuracy limited, and therefore hasn\'t necessarily shown the reach difference if there is one.
A reach test is a very specific kind of test, and is not often a good indicator of comparative performance in general use.
Feb 17, 2010 at 08:17 AM
Previous versions of brainiac's message #8143448 « 5D2 150% vs 7D 100% »
