I'll tell you as soon as I've finished my telezoom to trombone conversion project. I've drilled holes through all the elements but it sounds like an elephant's fart at best so far... Also the K mount doesn't seal against my lips too well, I might have another try with an M42...
2010/7/18 Richard D Bush <[email protected]>: > Do the push-pull-twist zoom/focus rings help these lenses be any better in > tune than the average trombonist? > > RB > > On Jul 17, 2010, at 2:16 PM, Bob W wrote: > >> What is meant when a lens is described as "2 touch," e.g., 35-70 F4 SMC >> A (58) 2 TOUCH ZOOM. >> > > it means the zoom ring and the focus ring are separate. Some lenses, such as > the 70-210/4, use the same ring for both - to zoom you push/pull like a > trombone, to focus you twist > > > -- > 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. > > > -- > 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. > -- 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.
