>>3318546I bought a vintage lens sold as, "for parts," due to fungus (under $14). I took it apart and the fungus wiped right off, no trouble at all. I then took the Pentax K-mount off and put on a macro reverse ring w/Nikon F-mount that I ground down to get infinity back for the lens. Now I have full functionality for the lens. I'm new to using a vintage fully manual lens that has a macro setting, but after a day of playing around with it I'm getting more confident with it.
The pics in the OP are taken with it. This image has the details of what lens it is. It also shows what my longest extension tube can do with it. Just don't ask what focal length I had the lens set to, because the tube with lens is as long as my arm! I had to sit down in the grass and hold the lens with my feet and the body with my hands to take the bottom photo.
