The significance of DFA lens is that they cover the 35mm frame. Not all the DA's do without vignetting.
Dave. On 9/3/06, John Francis <[EMAIL PROTECTED]> wrote: > I thought a significant difference between DA and DFA was the presence > of an aperture ring. Sure, longer focal lengths are going to have an > image circle larger than an APS-sized sensor. But that in itself isn't > enough to make it a DFA lens. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
