Ha Ha - this thread needs to come back to life.
tvfd911 ended up purchasing this lens, then he bought a BGN Takumar 500/4.5 that had a good F-mount and swapped the mounts. Then he apparently bought a better SMC Tak 500/4.5. So he has sold ME the BGN (with excellent glass) Takumar 500/4.5, with the hacked mount trimmed so infinity focus works and the T-K mount adapter I sent to deadwolfbones attached.
How could I resist? I bought the lens.
So that T-mount that I've had for a decade is COMING BACK!! It will finally be attached to something you can take a picture through
Preliminary photos coming soon. I expect along about February 1st there will be some wintering Bald Eagles in the Mississippi River above St. Louis that need a portrait done !!