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wayne seltzer wrote:
What about the center sharpness and other parts of the frame beside the far corners and edges of the fram? I bet the 50 MP beats it there.Why not present the whole story in a lens comparison? If you look at other zeiss prime mtf's like the 35, 21, they fall off in the corners. 85 and 100 don't. Looks like from the mtf the 50 MP falls off sharply at the edge of the frame. I haven't noticed this so far in my shooting but I will go back later tonight and show some crops from my copy.
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Thanks Wayne for the answer. The center sharpness and contrast of the 50MP is great. The contrast is much better than that of the 35-70. But since I want to use this lens mainly for landscapa shots I want sharp corners. Even at 5.6 the extreme corners are not sharp. The corners of my 21mm Distagon and my 100MP are wide open better than the corners of the 50MP at f/4.0.
And you are right I'm jumping between different focal lenght. The reason is, I really love the my lenses in the 21-24mm range (for example the 21mm Distagon) and my lenses in the range 85-100mm (for example the 100 MP). 50mm is not at all my favorite focal length, but the gap between 24mm and 100mm is to big, I need something in between. I once had a Canon 24-70L and was not satisfied with the sharpness. I sold it and bought the Zeiss 3.4/35-70mm. Good lens, but too low contrast for my taste, not the best bokeh and I don't like the handling (for example turning the filter when I change the focus). Next thing I tried was the 50MP, hoping to get something comparable to the 21mm Distagon and the 100MP. If the 35/2.0 doesn't work I will keep my 35-70mm and wait for something new. I hope this explanation makes sense to you.