I recently came upon a nice and late 1970s 300mm Schneider Xenar in a chrome Copal 3 shutter. The lens rim says 300/5.6 but the Schneider website only lists a vintage 300/4.5 Xenar. Does anyone have any info on this version? Does it cover more than the 4.5, or is it the same as a 4.5 lens jammed into a 5.6 max aperture shutter? (it opens up fully open at 5.6)
Bookmarks