It's pretty simple, the only difference would be in the mount, as the optical design is driven by the max aperture and required resolution. And since the mount is essentially the same, why not make it full-frame? There's a number of cases where such long lens designs were used for both MF and 35mm bodies with only a mount change.
-Adam John Celio wrote: >>Because there's no actual gain from making a subframe lens at that >>length, so no reason to do a DA lens. > > > Could you explain further? I was wondering why the long lenses were D-FA > too, and I'm not sure I understand what you mean. > > John Celio > > -- > > http://www.neovenator.com > > AIM: Neopifex > > "Hey, I'm an artist. I can do whatever I want and pretend I'm making a > statement." > > > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
