Vintage Canon Camera Co 50mm F1.8 Lens M39 Mount for Leica

This lens comes with a rear cap and a 40mm front filter. The clicked aperture adjust works fine.

The focus is smooth with average resistance. Optically its decent but not perfect, there's a hard to notice light smearing inside like it was wiped - its very light and difficult to photograph but I mention it for completeness.

There is also a ring of something right around the very very outside, see photos, not sure what that is. I don't think it will have an affect unless perhaps in the instances when shooting at F1.8 (at F2 the aperture leaves occlude it). To be sent as tracked parcel.