OT: Auto Yashinon 5.5cm f1.8 SLR lens information please

[zuikologist]

I picked up one of these lenses for a few $/£ a while ago. The lens body was somewhat worn but the glass was good. I am pleasantly surprised by how sharp it is. Colour rendition seems on the cool side. I would appreciate any information on date of manufacture. It looks single coated. Serial number is 521537.


Looks like this:

http://www.isc.senshu-u.ac.jp/~lh142012/yashinon55mm.html

Also, aside from being a different focal length, is it related to the lens of the Electro 35 series.

 

[yossarian]

The earliest mention I can find of Yashinon SLR lenses would place this one around
1960. The Pentamatic had a bayonet mount (unknown if it was shared with any
other company, but doubtful), which was dropped in favor of the M42 mount on the
Penta-J in 1962, but that one is shown with a 50mm f/2.

Fred

 

[zuikologist]

Thank you. It looks like a 1960's lens. I'll try to post some photos later.