I would offer a suggestion on this but I had just gotten my brand new Sigma 28-135 F3:5-5.6 MACRO when my PZ
-70 imploded at the Elemdorf AFB
last year. That was the first trip out for that lens. It seemed like it was going to be a good one.
Belive it or not, the only lenses I have bought since then have been Takumar Universal mounts that fit on my Spotmatic and my Zenit B.
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.