Like I said earlier the benefits of open aperture Metering FAR outweigh the very very negligible Errors caused by cam sensor tolerances. That's why Stop down metering went away 35 years ago on nearly All SLR cameras from nearly all mfgrs. jco
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of William Robb Sent: Sunday, October 22, 2006 4:32 PM To: Pentax-Discuss Mail List Subject: Re: The JCO survey ----- Original Message ----- From: "J. C. O'Connell" Subject: RE: The JCO survey > At any fstop smaller than wide open, especially > Smaller fstops like f11/f16 you lose a lot of light > Reaching to the meter and eventually as the light > Gets lower like than you will lose metering accuracy > And lose metering completely where you don't with > Wide open metering because there is much more light > Reaching the metering cells. DUH. It's a known issue. In reasonable light and moderate F stops, it isn't an issue, and you are measuring the light at the shooting aperture, rather than depending on the vagaries of a mechanical linkage. When the meter falls out of range, you have to either compensate with technique, or use a lens that supports open aperture metering. No one said the world was perfect. William Robb -- 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
