So, I just got a Leica Summicron-R 50/2. I had previously owned the amazing 35/2 and 90/2, but sold them because.... they're worth a lot of money. The 50/2 is interesting as it generally the most affordable modern Leica lens. I didn't know quite what to expect. Even at the good price I got, it seemed very expensive for a 50mm f/2 lens. I've got fantastic Minolta 50mm f/1.4 lenses I paid $50 for and perform wonderfully. After my first few shots, I said (out loud, to no one) "This is the best lens I've ever used" I've used a lot, but my GOD this thing! Here is a full picture and a roughly 100% crop. No sharpening to speak of, just some tone adjustments. NEX-6 with cheap-o adapter. Obviously, it's incredibly sharp. Sharp as anything I've used, including the Zeiss 50/1.7. More than that, it really does have a bit of a "look". The oof rendition is really something. Somehow, even at f/2 you always have a nice amount of separation. Now, I think the prices people pay for Leica are borderline obscene considering how capable cheaper gear is, especially now. I will say though, I sort of get the whole "Leica Man" thing. The lens is engineered beyond reason. Focus and aperture feel amazing, and it focuses very close.