I have been testing some of my lenses on the K10D and got around to testing the 100 mm f4 bellows with extension tubes and helicoid. Unfortunately the bellows Takumar is not compatible with the digital sensor as there is centre is over exposed due to lens reflections:-( One thing I did notice was how easily the Pentax M42 installed into the K10D body. Since there is no aperatue simulator, it is much easier to install - Thank you Mr Pentax! :-)
Bob -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net