the only rangefinder wides that compare favorably on an m-camera to the distagon 21/2.8 are the 21 SE, 24 elmar, and zm 25/2.8. none of them does well on the a7(r), so you\'re going to have to accept that if you want a smaller lens you\'re going to have (a bit) worse performance than the distagon 21/2.8. sorry.
Well, yes, I am looking for performance on an a7, not a Leica. I own a 24 elmar. The problem is that its not \'a bit\' worse performance. Its substantially worse performance. Regardless, it seems there is not much point in trying to drive a conversation about RF wides in this thread.
my point is there isn\'t much to discuss on this if you\'re looking for zf 21/2.8 like performance. the 21/2.8 destroys ALL the rangefinder lenses except the 3 i mentioned even when rangefinder lenses are reaching their max potential. since those three have serious corner smearing on the a7(r), there is nothing that will perform like the zf 21/2.8 on the a7(r) other than the zf 21/2.8. just like there isn\'t anything like it on dslrs.
From what Phillip has indicated the Contax 21mm f2.8 Distagon MM may have a better performance at least in certain areas than the Zeiss 21mm f2.8 Distagon ZF and it is fairly close in performance regardless with its own attributes and is a fair amount lighter.
Rich
Dec 10, 2013 at 06:42 PM
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