If you shoot with Micro 4/3, especially video, or stills in 16:9 or 1:1 format, you will love this lens.
This is Bell And Howell Lumax 1 inch, for 16mm film cameras.
Provides very special look, great color rendition, very sharp in the center once stopped down a bit - all sample photos taken either a bit below or a bit above F2.8
I serviced the lens about a year ago, new grease, optics cleaned, functions very well.
Optics - 9/10 a bit of dust.
Mechanics 10/10 works as should.
Cosmetics 7/10 - rubs and paint loss on the body, looks a bit rough but still pretty.
The only downside I can think of is that since it's small and the focusing ring sits close the camera body, it's a bit uncomfortable to focus, but the effort is worth the result.