Scott, I've several polarizers. One is B+W 58mm that I bought brand new along with 49->58 and 52->58 rings. It was about $115 from B&H. It serves my limited lenses, 'cause 31 ltd does not allow anything but proper 58 mm filter. Another is Promaster MC Polarizer that I bought used from someone on the list (could be you as well) that I find absolutely satisfactory. I use it on Tamron 28-75 and SMCPJ 18-35.
In fact, if anyone needs a simple 58 mm Cokin polarizer (I cannot say is it MC or not, it only says "mineral glass" on the box) - contact me off-list - I'll send it across. I also have Cokin-A system polarizer that I used prior to getting B+W's one. Admittedly, B+W is the best. However, others are not bad either. All these are circular polarizers. HTH. Boris Scott Loveless wrote: > So I'm shopping for a polarizer again... -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

