On Oct 1, 2007, at 11:46 AM, Boris Liberman wrote: > I am asking my question mainly because if it indeed covered full frame > and there were no image deterioration past the APC frame, Pentax > probably would have given it FDA designation instead of DA.
The D-FA mount includes an aperture ring control. DA lenses do not. The DA70 has no aperture ring control, it was design for use with the digital SLR bodies. Whether it actually covers 24x36 mm format isn't really relevant to the mount designation. Godfrey --- Not really relevant but interesting: In the course of researching my latest lens acquisition, I saw an article about someone who took an M42 mount Pentax Fish-Eye-Takumar 17mm lens and cobbled up a mount to fit it on a 6x6 rollfilm folder with behind-lens leaf shutter. His goal was to make circular fish eye images inexpensively ... it produced an image circle ~ 45mm in diameter on the 6x6 format film, which suited his needs perfectly. --- -- 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.
