John Francis wrote: > > >> > So if you compare frame-filling shots (of the same subject matter, taken > from the same viewpoint) from both sensor sizes made into the same size > prints you'll need to open the aperture on the DS up by about a stop to > get the same DOF as the print from the full 35mm frame, just as you have > to open the aperture on a 35mm camera up by about two stops to match the > DOF of a 6x7 (and another stop for 4x5, and another two for 8x10 ...)
So does this mean that on my 67II that f2.8 on the 165mm gives the same depth of field as at f1.4 on my z1p. If so who need s the FA* 85mm f1.4 ? It would also be equivalent to f1 on my DS?? yours in confusion Peter -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
