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| p.1 #2 · p.1 #2 · announced: Kipon medium format focal reducer |
...Not sure of what advantages this may bring compared to fast 35mm FF glass though.
Well, at f/8 and infinity focus, the Mamiya 645 C 55/2.8 C is sharper across the frame than the Leica Summicron-R 50/2 E55, Carl Zeiss Vario-Sonnar T* 35-70/3.4, and Canon EF 24-70/2.8 L II, and virtually tied with the much more expensive Carl Zeiss Makro-Planar T* 50/2 ZE.
Also at f/8 and infinity focus, the Mamiya 645 C 80/2.8 N is sharper across the frame than the Voigtlander 75/2.5 Color Heliar SL, Canon EF 70-200/2.8 L IS II, EF 24-70/2.8 L II, EF 70-200/4 L IS, and Carl Zeiss Vario-Sonnar T* 35-70/3.4.
Also at f/8 and infinity focus, the Mamiya A 150/2.8 + 1.4x III is better than the Canon EF 70-200/2.8 L IS II (!), EF 70-200/4 L IS, and EF 100-400/4.5-5.6 L IS II. At shorter range, the Mamiya A 200/2.8 APO is the best of the bunch, but not at infinity focus.
It would be interesting to compare these lenses on an E-mount camera with the focal length reducer, but it's not on my "to do" list.