The lens maker from Rochester New York, Bausch & Lomb has good reputation of it's high quality product. This 35mm film projector lens is nice sample of the reputation. even my copy has kind of discoloration on the inner glass, I guess it was due heat of the projector that effected on coating. Body is solid metal. Some say it has petzval design, I haven't check it yet. But the results showing some similar touch with petzval/biotar type.Sharpness is good, CA is appear but only little. it must be zoom 100% to see the fringing.
All shot with NEX5+Helicoid adapter, wide open (no aperture added yet)