A two-touch lens has a zoom ring and a focus ring where as a 1-touch lens has push-pull zoom and traditionally the push-pull portion functions as the focus ring for manual lenses, AF lenses will usually have a smaller focus ring as part of the push-pull section
On Sat, Jul 17, 2010 at 4:02 PM, Eric Weir <[email protected]> wrote: > > What is meant when a lens is described as "2 touch," e.g., 35-70 F4 SMC A > (58) 2 TOUCH ZOOM. > > ------------------------------------------------------------------------------------------ > Eric Weir > Decatur, GA USA > [email protected] > > > > -- > 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. > -- M. Adam Maas http://www.mawz.ca Explorations of the City Around Us. -- 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.
