Lon, If the Spiratone A 20mm f2.8 PleuraCoat, SerNo.216974, 58mm threads is the same as the Cambron, you did well. Sold from aboug 1989 through the mid 90s, the multicoated Cambron--made by Zenitar--actually got a fine review in Peterson's Photographic. It was said to be well built and optically sharp, with decent flare protection. Geometric distortion and vignetting may be a problem, given such a narrow front filter diameter. I can't recall what the review said.
I had never seen the Cambron sold until this weekend, when one sold on USA EBay in PK mount for something like $68. It looked exquisite. Paul Stregevsky -------------------------------------------------------------------- mail2web - Check your email from the web at http://mail2web.com/ . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
