----- Original Message ----- From: "J. C. O'Connell" Subject: RE: A test of meter/exposure calibration between *ist DS and K10D
> When you use any lens on "A" setting, and set > aperture with the body, there shouldnt > be any variation with fstop related to metering sensitivity > range as you chose smaller fstops, i.e. metering is done wide open > regardless > of selected f stop for the exposure. If you are > getting exposure variation vs fstop with the lens on "A" > then you are not getting accurate fstops with > that lens when controlled by body or the corresponding > shutter speed for the smaller stops is inaccurate or > BOTH combined is giving you noticable variation. The histograms in "A" are showing less than 1/3 stop exposure variance. That is well within the allowed parameter for mechanical accuracy. William Robb -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
