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Forum: Pentax Medium Format
08-21-2014, 01:36 AM
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Thanks for this test, Lacunapratum. I do not own a digital MF camera, but a 645N system and a 67II system. Your results equal mine in those cases I own or owned the same lenses. Two things I'd like to contribute:
- mounted to the 645N, shot on Velvia 50 and scanned on a Screen Cezanne Elite with ~5000dpi confirmed, the 645 FA 75/2.8 and the 67 SMC 75/4.5 are very equal at f8 and f11. The P67 has a bit less contrast whereas the 645 FA suffered from greater CA. Resolution is practically the same, differences are nouances, in the center as well as on the edges of 6x4,5 frame.
- the P67 SMC 75/2.8 AL is the sharpest and most contrasty lens and probably in a league of its own in the P67 system.
I still need to get he latest version of the P67 55/4.0 which is not that rare but supposed to be very good as well to see if its more similar in performance to either my latest version of the P67 200/4.0 or my 75/2.8 AL. But having the P67 45mm it is not that urgent in terms of perspective opportunities.
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