>... I was not aware of any 1:1 "adapter" for any Pentax 100mm >macro. (But "I was not aware" does not preclude the actual >existence of same - <g>.) Are you sure it's not actually a TC or an >extension tube? > >Yes, it is an extension tube. The only markings are Asahi Pentax Japan, a >small number 3 and an orange dot. It's fully coupled for pre A lenses (no >electrical contacts.
So this is the no 3 ring of the Auto Extension ring set. About 25mm long if I remember. With it you can go from 1:2 to 1:1 with a 50mm macro, but not with a 100mm. You would need a 50mm tube to get there. If you finder check your "X" power, you should be able to see 50mm or 60mm (1 inch or so) of a ruler with the lens set at closest focusing distance with the ring on, not 36mm. Andre -- - 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 .
