I guess you will need to screw a polarizer larger than the front of your lens (via a step-up ring) to avoid any vignetting. Maybe a circular polarizer if your camera meter ask for this type of polarizing. A big polarizer from the best makers is quite expensive. A used Hoya might be a good choice if you are patient and like to shop at eBay.
Andre >Hello all, > >I am considering to buy a super wide angle lens (17-20 mm) but many of these >lenses use >rear filters. As I will use this lens mostly for landscapes and, in that >case, polarizer is >essential, how do we use polarizer in such lenses? Is it possible? > >Regards > >Alex -- - 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 .
