Oreston
Oreston
Frank,
I've used a few of these, and they (like the Soviet lenses) had rather loose QC and tended to vary a lot.
Just to make certain we're talking about the same lens, the ones I used had the very useful ability to focus to 13" (from the film plane). I would put average optical characteristics of this lens on par with similar vintage Mamiya/Sekor and Miranda lenses; sharpness and contrast would both rate adequate but flare level a bit on the high side. However, there was no dramatic drop in quality at minimum focus, which is remarkable, considering it beat out every other normal lens except for the f/2 Planar for the Contarex in near focus.
yossarian