I posted this also in another thread, but thought this might be where this post belongs . . .I am fortunate to have been able to pick up the 21 2.8 asph, 28 f/2 asph and 35 f1.4 asph when they first came out. However, when I am walking around, bicycling, boating, I almost always opt for smaller lenses than these because, to me, what sets the Leica RF apart (and the R-d1 temporary surrogate for the M8) is its compactness.
One of the things I discovered was that I could use an old lens shade from a 50 summicron on the 35 summicron and not experience any vignetting because of the magnification factor. This may sound stupid, but I would definitely use the 21 2.8 and 28 asph lenses more if they had smaller lens shades. Are there any alternatives for the original lens shades of these lenses? What about using them without shades (which I have never done).
Also, when I recently wanted to have a really compact outfit using the R-d1, I chose a VC 12, VC 21, VC 28 , the 35 summicron asph and a 1954 50 3.5 elmar. This was an incredibly light and compact outfit. I left the little VC 28/35 finder on top (to estimate 21 and 28 frames) except when I wanted to see the full coverage of the 12, in which case I used the 12D VC finder. Amazingly, the clear winner with all of the images I shot was the 50 year old elmar! And it was of course the smallest, lightest by a wide margin.
A major factor in owning the Rd1 and using it and in my having ordered the M8 is its compact size. Otherwise I would be happy to use the 5D, which produces superb images (with a little smart sharpening added), but I tend only to use it when size and weight don't matter.
So I guess the broader question is whether, by using the super compact vc lenses (light gathering aside), one gives up a lot (I have been too lazy to do a direct lens to lens comparison to the leica lenses so far, but maybe that is what I will need to do to get a good handle on the compromises I make when I use the little VC lenses).
I should add that when I have been willing to ignore size and have used the 28 f/2 asph or 21 asph on the rd-1, the results have been terrific, but the experience of carrying the camera with the larger lenses was less pleasant.
Sorry to ramble . . .
comments appreciated