This is Canon rangefinder lens 50mm f0.95.

It is origin of ‘Mantou’ lens design width is bigger than length.

The lens humbly stand at left is Leica Summicron rigid.

I had intention to add this lens to Sony, once TechArt Leica-Sony AF adapter arrived,

but it ain’t work like that due to the lens barrel is too thick.

Only way is via manual adapter. Manual one doesn’t have motor so not hinder using it with adapter.

Well… somewhat disappointed…