Spiratone YS 135mm f1.8 for Fuji ST/M42 minolta which doesn't notably affect usability

which doesn't notably affect usability (this is still the best Contax RF viewfinder available)

pretty nice

or deformation

and a f4 constant aperture throughout the zoom range—all in a compact and lightweight package—this is an indispensable lens for shooting events or sports

Spiratone YS 135mm f1.8 for Fuji ST/M42 minolta which doesn't notably affect usabilityThis is a big lens about the size of your average grapefruit, if a grapefruit weighed a kilo. In excellent cosmetic condition, with only light cosmetic wear; the glass is clean, and focusing is smooth. There is a slight bit of oil on the diaphragm just a touch. A real unique lens in good shape. This lens is has a YS interchangeable mount, and it's supplied here with a Fuji ST thread mount (which is compatible with most M42 cameras and adapters).