I've got a new lens on its way to me. It is a Zeiss 25mm f3.5 lens that is mounted in a shutter on a 4x5 view lens board. I have a Polaroid MP4 set up, and am familiar with the Tominon series of lenses for it. I am unfamiliar with a Zeiss set of lenses for large format macro work. Does any one has any info on the 25mm, or others, if there are others?