Upload & Sell: Off
Doug; I have mixed feelings about the A12 28mm module. In a way it is great, in another way I find it slightly lacking. It is a bit soft from f2.5 up to f3.2, maybe f4 before it starts to sing.
Also, I find the distortion a little annoying in some instances for close up work.
Overall it is a great unit and I don't regret the purchase as it is my most used module out of the two I have. When compared to the 28/2 Summicron and the ZM 25 on full frame I got the same feeling as I did with MFT, good but not grrreat. Also, when compared to the Leica R28/2.8 on the S*ny A900 it was the same story.
For general use it is great and very handy. I don't see it as a system on it's own, but as a fine complimentary outfit to a full frame camera.
J.Liam; considering the price of the A12/28mm unit I don't think it is that bad, considering what good wideangle lenses set you back nowadays. Though I might seem luke warm about the A12/28 I find it is better than most of what is offered by the competition.
I was getting the GXR with the hope of the M-module becoming reality and see the A12/50mm macro module (which is great, by the way) as a very good supplement to a few Leica lenses on the M-module since they won't focus that close.
After the initial disappointment by the M-module not being full frame it does have a few advantages over NEX, like a sensor that is customised for RF-lenses, user adjustable internal processing for wide angle lenses, no AA-filter (yeay), much better GUI, better focus assist etc etc so for me it feels like a whole new camera in itself. I had two GXR bodies but sold one when I got the M9. Here in Sweden the GXR bodies are actually quite cheap so I might even get a dedicated body for the M-module.
After returning the 28/2 Summicron and swapping for the ZM25/2.8 I can still get the ZM18/4 AND the GXR M module for the spare change. That is crazy! The ZM 18/4 would work nice on the GXR me thinks, a costly replacement for the A12/28mm but without the AA-filter and the presumably sharper Zeiss lens I think it would work for me. I plan on shooting it mostly 1:1, like a mini SWC.