NO, you misunderstood my reply, he specifically stated he was getting exposure variations with the lens aperture set by the BODY in his "control" tests and also stated it was being caused by metering sensitivity limitations which doesnt make sense beacause when the lens is used on A the metering sensitivity is not an issue as you change the manual fstop setting on the BODY. jco
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Savage Sent: Wednesday, January 24, 2007 10:19 PM To: Pentax-Discuss Mail List Subject: RE: A test of meter/exposure calibration between *ist DS and K10D John, read what Godfrey wrote: "I've read on DPReview.com many people saying that metering with pre-A series lenses was off in the K10D" Godfrey doesn't own any pre "A" lenses, so he was testing them off the "A" position to mimic how K & M lenses behave when taking meter readings on the K10D. That was the point of the test. Cheers, Dave At 10:40 AM 25/01/2007, J. C. O'Connell wrote: >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. >jco -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
