But isn't true that the sharpest focus for a lens is less than wide open, so by opening it up you are decreasing overall focus by some amount?
John Graves WA1JG [EMAIL PROTECTED] mike wilson wrote: > Boris Liberman wrote: > > >> First of, I still think that by opening aperture (and the lens >> is fast enough) you can decrease sharpness... >> > > Hmmm. You can decrease the depth of the plane of focus but you can't > (afaik) decrease the sharpness of it. Thereby giving a softer look to > more of the picture. Is that what you mean? > > -- 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.
