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| p.2 #2 · Official: Sony A7 and A7R Fullframe Mirrorless |
Re: rangefinder lenses... Ming Thein observed that using a 35mm Summilux ASPH FLE on a µ4/3 camera generally resulted in sub-par imaging, largely due to the fact that the microlenses on the µ4/3 camera didn't play with M-glass as well as Leica's own FF digital RFs.
"Out of curiosity, I tried the lens on my OM-D, expecting the same outstanding level of performance as seen on the M9-P; no dice. I was sorely disappointed, and reminded of why I dislike using non-native lenses on other systems, especially those with very short back flange distances. The microlenses covering the sensor form part of the optical system, and tend to interact in strange ways with the optics of legacy lenses. Unfortunately, it was no different here: the 35 FLE showed bad smearing and lateral chromatic aberration (plus purple fringing) and wasn’t acceptable until f5.6 or thereabouts"
I'm hoping the same isn't true for using RF lenses on a FF NEX; maybe the optimized microlenses will help? I was going to pick up an RX-1 at some point, but with the A7r announcement, I think I will wait and see if one of these would make a credible option as a small FF AF digital that can also use my M and F-mount optics in a pinch.