William, I have the Pentax sheet that explains the "theory" behind the design. And it works. It can "push" out of the field a reflection of a bright light. A friend of mine used to have it with him all the time (for kithchen photos) and at times he would be the only one who could do a nice photo without any bulb reflection. Nikon guys could not believe it and would find one to fit with a step-down ring. Pentax made a UV and a Skylight ghostless. Only 49mm. I don't think they made SMC ones.
I could scan the sheet and send a jpeg to those interested (off-list). They are not very common but do appear on eBay once in a while. Andre >Hi, > >I just picked up a Pentax ghostless uv filter out of the junk bin and a >local camera store. Anyone know anything about the history on these? I >checked Boz's and Dario's sites, but didn't see anything. The glass is >curved, but I'm not sure if is is coated or multicoated or not. It >doesn't say "SMC". > >Thanks, > >William in Utah. >- >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 . -- - 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 .
