Auto Mamiya/Sekor 1:2 50mm M42 Lens - 192 Flare

Auto Mamiya / Sekor 1:2 50mm M42.

Although there is no mount selection, I have listed it as Sony E-mount, but it is M42.

[Condition]
Appearance: I think it is a beautiful item with few scratches or dirt.
Helicoid: A little heavy, but it works throughout the range.
Aperture: Although no dirt is visible on the blades,
When using it with a film camera,
When using it in "A" mode, the pin is pushed when the shutter is released, and the blades close to the aperture value immediately, but it takes about 2-3 seconds to return to fully open.
There are no problems with opening and closing in "M" mode and digital use.
Optics: There is dust. There is a faint thread-like mold mark on the edge of the front lens surface. There are several faint mold marks on the rear lens.
Minimum focusing distance: 0.5m
Mount: M42
Included: Filter (kenko 1A φ52) with mold marks

Mamiya lenses are not very popular because they have their own unique mount and there are no adapters.
However, like this lens, they manufactured M42 lenses before switching to their own mount.

Sample images were taken with this lens + M42 adapter + Sony α7II.

I am selling it because I have limited storage space.

It is a retro-looking lens with a silver lens barrel tip frame.
I hope that those who enjoy the taste of old lenses will use it.