Message text written by INTERNET:[EMAIL PROTECTED] >I know that this has been gone through before butI am confused, so could someone please explain HOW to 'calibrate'. Also are you 'calibrating' the camera/film combo or can you 'calibrate'the camera seperate from the film? Alan<
shot a roll of film of a scene starting from probably at least 2 stops over to 2 stops under. use your ISO dial for manual ISO setting so that you get 1/3 stop increments above and below the nominal for the film. do the original metering with a 18% gray card and use your camera in manual exposure mode set to correct exposure for the gray card. in the scene, include brights and darks well beyond what only 2 stops of compensation can cover. if you have the means, include in the scene a standardized color target. i own and use a GretagMacbeth ColorChecker for this purpose and to check color shifts and reciprocity failure. include in the scene also a small piece of paper with film and ISO rating you used for each shot. the "best" photo tells you the ISO speed you should use for that film in that camera body when exposure has been set. best is a combination of what you like and how closely the color reference looks like the original color target. i happen to like Provia 100F about 1/3 to 1/2 stop underexposed, just like i do for most other slide films. the ones shot dead on according to the exposure meter are a bit light for my tastes. it measures more accurately on the densitometer and colorimeter though. however, i don't complain about lousy metering. when something matters, i bracket and i always include half stop under in the bracketing. i have no problem with staying with evaluative metering most of the time and when i think it will be fooled, i bracket up to 2 stops in each direction in half stop increments, leaving it in evaluative mode. expecting to take only shot of every scene and getting a perfect shot is almost impossible, so i bracket. i use my exposure compensation dial instead of manually setting ISO because i find it more convenient. i habitually choose slight underexposure for slide film because i like it. i don't complani about the meter. Herb.... - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
