Help me identify the mount on this Ricoh 55mm please?

[reala_fan]

Hello Gang...

I have this Ricoh 55mm f1.4 lens that came off a something or other early Sears SLR.

I wanted to use it on my m43 gear, and bought a Pentax K to m43 adapter. But the lens is not Pentax K as it does not come close to infinity focus.

Anyone know what bayonet mount this is??

Appreciate...

 

[Greyscale]

It is a variant of the Nikon F mount. You may have to modify it to use with a Nikon adapter, see here:

http://forum.mflenses.com/viewtopic.php?t=42494

 

[reala_fan]

It is a variant of the Nikon F mount. You may have to mofify it to use with a Nikon adapter, see here:

http://forum.mflenses.com/viewtopic.php?t=42494

Excellent, Caveman!!

Thank you, sir!!!