I just bought got one of these on impulse. It's a very big lens -- a bit longer and much wider than my CV Nokton 50/1.5, and much longer and a bit wider than my Canon 50/1.2 (begs the question, I know, I know). I'll post some pictures from my R-D1, once I've got anything I'm not embarrassed to show. 🙂
Question: What filter do you use to protect that big, wide front element? My lens came with a B+W UV IR Cut 486 MRC slim filter. The problem is that the slim model doesn't have front screw threads, so I can't mount a hood. (I didn't get the original hood, so I got a generic 62mm screw-in hood that doesn't block the RF patch window on my R-D1.) I also have a B+W F-Pro UV 010 MRC filter, which does have front threads. However, both filters are a hair narrower than the lens barrel, so the lens cap is too loose to stay on the filter (the slim filter ring is shallow so that the cap reaches enough of the lens barrel to hold on, but the regular filter ring is too deep). What do you guys do?
Thanks,
Ari