Identify the mount game!!! Yashinon

[Layer-cake]

This doesn't happen often anymore but really this one has me stumped.

Thought I was getting lucky with a Tominon Yashinon R 3.5cm lens but I have no idea what the mount is.

Not a CY the closest I could see was a Mamiya z mount but I doubt it, the lens cap that came with it says MI-A but doesn't fit too well IMO

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[Layer-cake]

Never mind it's a Pentamatic mount. Didn't even know this existed

[papasito]

Pentamacit, without hesitate


http://mattsclassiccameras.com/slr/yashica-pentamatic/


https://yashicasailorboy.com/

[Lightshow]

I have that very lens, and just bought the matching 100/2.8, it's a very well made lens, easily as good as any Pentax lens.
I modified a Sony/Minolta AF mount to NEX adapter for mine, to mod it, you remove the mount from the adapter, and using fine(600) wet/dry sandpaper, and using a figure 8 motion sand the face down till the lens can mount, then do the same thing with the adapter body, but you have to keep checking infinity focus, having a calliper to measure for equal thickness is recommended.
Sadly you can't see most of my pictures because they're portraits, and they happen to be some of my favourite pictures from the year.


https://www.flickr.com/photos/lightshow-photography/tags/yashicatominonsuperyashinonr35cm28/

[papasito]

[Layer-cake]

Many thanks guys, I saw tominon and took a chance. Not much info on the lens, hoping it'll be better than the normal yashinon R 3.5cm

[Lightshow]

I just Uploaded 2 more from the 3.5cm

[jamaeolus]

Mounting pressure then, in each level?