"Roland Mabo" <[EMAIL PROTECTED]> wrote: >>From: Carlos Royo <[EMAIL PROTECTED]> >> >>Just the contrary. It is calibrated for negative film, hence it >>overexposes. > >Then why doesn't my MZ-5n overexpose slides?
Because the camera isn't "calibrated" for either slides or negatives. No camera is. Here's an excerpt form a Galen Rowell column on the subject: "Before finalizing choices, I shot 12 rolls of tests with different camera bodies, telephoto lenses and teleconverters... Anyone who advises to set an in-camera meter at a fixed ISO number different than a film's rating is fooling you and themselves. I planned to use mainly ISO 50 Fujichrome Velvia and knew that its high saturation can create under-exposure, but I also knew and proved to myself yet again that even the best new cameras have considerable variation. You're unlikely to get consistently good exposures unless you test a personal ISO for each individual body, lens and film combination you plan to use, or do extensive bracketing on every shot. The magazine's F100 required ISO 64 to match an ISO 50 slide from my personal F100. The same exposure on the loaner N80 was shot at ISO 32. My old N80 tested to ISO 40. Many broad-range zooms compound exposure error by underexposing at wide-open apertures." Notice the variations he found between one Nikon F100 and another F100 - and this is a much higher-end camera than the ZX-5n. If exposure accuracy is important to you, *test your own cameras* - each and every one. Either that or, as he says, bracket each and every shot. -- Mark Roberts Photography and writing www.robertstech.com
