11-11-2010, 11:09 PM
So far I've only used it on crop sensor. It is quite possible the sun might be within the full frame view for the test shots showing glare/flare so that would be a tough condition for any lens. I guess I should have added that to the original description. The thought occurs, I wonder if anyone does a longer hood that's compatible to pass only the crop sensor area? My main use will be indoors anyway so it is not a likely issue.
The purple fringing I've only induced once, which was on sunlight reflected off water. So it was likely massively overexposed at those points. It didn't happen at any other time.
My sharpness observation is a bit trickier, as I found it very difficult to get the focus exactly the same with both lenses even with zoomed live view. It does seem in line with the Photozone results on the 5D2 centre region. We are talking about pixel peeping differences at this point. I have to wonder if the aperture sizes might be fractionally different leading to the Canon taking over sharpness stopped down, and at the same time explaining the suspected lower exposure on the Zeiss. But again, we're really looking at fine details there.
The purple fringing I've only induced once, which was on sunlight reflected off water. So it was likely massively overexposed at those points. It didn't happen at any other time.
My sharpness observation is a bit trickier, as I found it very difficult to get the focus exactly the same with both lenses even with zoomed live view. It does seem in line with the Photozone results on the 5D2 centre region. We are talking about pixel peeping differences at this point. I have to wonder if the aperture sizes might be fractionally different leading to the Canon taking over sharpness stopped down, and at the same time explaining the suspected lower exposure on the Zeiss. But again, we're really looking at fine details there.
<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.