Quote:
Originally Posted by crazeazn Out of the 7D, 5DII, and the 1DIII which is most demanding on lenses? |
I would say the 7D because of its pixel density but none of your lenses should be a problem on any of these cameras.
The 5D MKII does a good job in low light using the center point but its AI servo performance in low light may not be the best of the three. It really depends how fast your friends are moving.
I haven't had any problems using a 580 EX II @ ISO400 indoors with all three cameras. The 7D seems to meter the best of the three using a flash.
I wouldn't recommend using the 7D consistently over ISO3200. I have gotten some good shots at 3200 but I usually don't like using it over ISO1600. The detail starts to break down fast over ISO1600 and only optimum conditions will yield you an acceptable ISO3200 shot. I know everyone's QC is different but the fine detail on birds, for me, using the 7D takes a big hit moving from ISO1600 to ISO3200.
The 5D MKII handles ISO3200 well and its acceptable level for me is ISO6400. At that point I will only keep those shots made in optimum conditions to minimize the noise at that level.
The 1D MKIII, using FlexNR, will yield very similiar results to the 5D MKII. Maybe just a little less but the files hold up well to processing and seem to hold their detail better.
You can't avoid the resolution differences which become apprarent if you print big or crop. Since you don't print then cropping is your only concern.
FWIW I get the best performance out of my lenses with the 5D MKII, given all things equal. The detail, color depth, and dynamic range is better than the MKIII and 7D.