Introduced at Photokina in 1960, the LEICA ELMAR 135mm f/4 is an extraordinary lens today, as well as an extraordinary bargain.
The 135mm f/4 has super-sharp optics at every aperture, a magnificent 12-bladed diaphragm, no distortion, no falloff, and impeccable mechanical quality.
It works fantastically as an ultra-telephoto on all LEICA M cameras, especially its contemporary the LEICA M3, as well as today's newest LEICA M9.
It is LEICA's lightest 135mm lens ever, takes standard 39mm filters and the same snap-on A42 12 575 Hood as the LEICA Elmarit 90 f/2.8, and therefore my very favorite 135mm lens.
LEICA's catalogs of the 1960's said "this is one of the sharpest lenses ever created," and it is. It's ultra-sharp even at f/4.
This is the M-Mount version.
More info at Ken Rockwell here.
The lens, and both caps.
Cosmetic: Overall very good condition, with some signs of use.
Optical: Free from haze/fungus/scratches.