On Jul 18, 2006, at 8:05 PM, Joseph Tainter wrote: >> It's good to know that the two lenses perform similarly with regard >> to resolution, and that the DA21 has a slight edge on the FA20, but >> 1m is a bit close for a real evaluation of potential image quality. > > I was aiming for 40 to 50x the focal length.
That's good for a reference measurement when shooting a resolution chart, but resolution charts really don't tell you much about the behavior of a lens when making photographs at more normally used distances. Rendering qualities, sharpness and contrast at focus distances used for practical picture taking are much more important. Godfrey -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
