Jupiter-9 85mm F/2

[irfan.in.tx]

This is a Russian lens (M 42 mount) with sharp optics and very good out of focus rendering.

Pentax K-x Metered manual,

1. F 5.6, 1/15
2. F 2.0, 1/40

[venchka]

I think it's a Sonnar formula lens. Nice see older lenses here.
Yep. It's a Sonnar.

Jupiter-9 85mm f/2 M42 Lens Review

The Jupiter-9 is a copy of the pre-war Zeiss Sonnar 85mm f/2, and perhaps that's the reason why this lens has such an outstanding reputation. Result pretty impressive, not bad from a non-macro lens.Very good performer as portrait and close-up lens too.
Little later I tested as portrait lens, soft at wide open means makes for excellent portrait lens, I don't like to sharp lens for portraits , sharp lens shows every skin problem, that is not to nice at all. One or two f stop down this lens is tack sharp highly recommended as general purpose close-up lens.Quality is excellent even it wide open, if you compare the price how cheap this lens every pieces is bargain. This lens is pleasant experience all around, colour, sharpening, focusing, build quality everything just great.