11-29-2011, 10:25 PM
As decision time approaches, it is clear to me that the final battle will be between the Nikon 20 and either the 18 or the 21 Zeiss. The 18 is a little lighter and smaller, but somewhat softer in the edges wide open. However, I am not so sure that I will use it often wide open anyway, so it is not out of consideration.