Vivitar FD 135mm f/2.8

Lens Groups -
Lens Element -
Aperature Blades -
Minimum Aperture -
Closest Focusing -
Max. Magnifcation
Filter Size -
Diameter x Length -
Weight
Hood -
8.0
9.0
8.3

ProfHankD

IQ
8.0
Build
9.0
8.3
Well built, built-in shade, good IQ, cheap, f/2.8
Heavy, lenscap fits over shade

Mine is a 28 serial number, built by Komine. Actually, I own several.

Common and really cheap on eBay, under $20 including shipping. Slightly soft (low contrast) wide open, but IQ typical of a good 135mm f/2.8 -- and most 135mm lenses are pretty good. My favorite lens to use on tubes/bellows, IQ that way is better than some macro lenses. Built-in shade is nice. Not light, but compact and very well-built solid metal body.

Only annoyance is that lens cap fits over built-in shade, which makes it bump into any filter when the shade is pushed back.