Adam Maas wrote: >Your meter is calibrated for approximately 12.5% grey (ISO >standard).
I believe it's ANSI standard "ANSI PH3.49-1971" As far as I know it hasn't been made into an ISO standard. Did I miss it? >Cards are calibrated to 18% grey (Kodak's choice at Ansel >Adams suggestion). Thus grey cards do not actually function as >described but rather cause a slight overexposure . Kodak, at least, provides instructions with their 18% gray card that you should meter off the card and then dial in 1/3-to-1/2 stop underexposure. -- 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.

