As the A contacts only pass max and minimum aperture, no variable-aperture zoom will pass correct info to a SuperA/Program unless the zoom is at minimum length. It takes an F or later body and lens for correct aperture info to be passed for variable-aperture zoom.
-Adam On Sat, Apr 26, 2008 at 6:45 AM, jim <[EMAIL PROTECTED]> wrote: > How backward compatiable are the F, FA DFA lenses with the Super A/Program? > I have only an FA 80-320 zoom and it doesn't provide the correct apature > information to the camera for program mode or shutter priority. > Have tried my DA* and it is the same. > Have a few sigma's and a tamron and they don't provide correct apateure info > either. > Has anyone else tried this or can test this with other lenses? > > James > > > > -- > 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.
