Hey Guys,
I recently acquired a 2nd copy of this lens, so one of them needs to go. More photos of the actual lens you will receive plus some sample shots from it (and some more useful field shots later in the thread) are in this thread:
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/52686-macro-ta...ification.html I am asking $80 plus shipping (PM for the total quote based on your location). Everything works great with the lens. There are a couple specs of dust in the lens, but they don't hurt anything. No fungus or scratches. It will acheive 1:1 magnification without any additional hardware, and is very compact for a 50mm 1:1 macro lens. SN 2511859.
It is an M42 mount lens, so will require an M42 to K-mount adapter to be used with Pentax DSLRs. Also, it is a preset aperture lens, which means that there is one aperture ring to control the aperture range and one to control the actual aperture. Requires stop-down (green button) metering or Av mode with EV compensation to meter correctly on digital bodies.
Thanks!
PM me if you are interested.