Bob Sullivan wrote: > I still don't understand how is is there at f22 but gone at f2.8,
I've always rationalised it as small aperture = large depth of field. Spots come nearly into focus at f11 and smaller. At 2.8 they're so out of focus they don't register. Is this right anyone? Chris -- 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.

