Today I received a lens I wasn't expecting to be serviceable a Panagor 500mm mirror I got for £20 due to 'fungus' (The plan was to use the helicoid to mount an oversize lens)
When I checked it I couldn't find any sign of fungus, and I was surprised at how small the lens was compared to the other 500mm f8 lenses I've seen.
I've only taken a handful of test shots with it so far tje infinty focus one looks fine but is rather boring to share (just the top of a conifer), this shot near MFD is more interesting:
Subscribe to see EXIF info for this image (if available)
No obvious issues in any of the shots, I think I'm going to keep on using this lens - it's only 485g & 20mm narrower than my other 500mm cat - I'll just have to continue looking for a scrap one