The Zeiss f2 should be a great lens. Your save a chunk of change over the Summicron Ashperic, but pay for it a bit in size and weight. I regularly use f2 on my Summicron and personally wouldn't give up a full stop of speed. Often you don't even notice slight blockage in shooting, but if the finder blockage ends up being a problem I'd sure look into a used Summicron before loosing half the speed with the 2.8 Zeiss. If your shooting style doesn't emphasize available light, then your conclusion may well be different.
Originally Posted by brian steinberger
The 6 element Summicron is tiny and the most affordable. I know of one locally if you are interested (think it is still around).
BTW, my impression has been that the 40 Summicron (that you mentioned in another post) is based on the 35mm 6 element design. The designs look virtually identical and pererformance is very similar except the edge performance is slightly better on the 40 due to the longer FL. I've had more than one of each over the years.
Last edited by Mark Crabtree; 11-03-2011 at 08:38 PM. Click to view previous post history.