>on 27.01.03 17:39, Bruce Rubenstein at [EMAIL PROTECTED] wrote: > >> I suppose I should also point out that Nikon fires a pre flash prior to >> the actual flash exposure so it can meter the reflected light of the >> flash from the subject. The metering is also tied to the active AF >> sensor. In my experience with slide film, it deals very well with an off >> center subject that is against a very dark background. >> Hi Bruce, the AF sensor cannot be coupled to the 5 segment flash sensor (e.g. for the F100). The AF sensors are always on the borders which are between the segments. To be coupled to the AF sensors, the 5 AF sensors must be distributed like the Contax N1 sensors.
The MZ-S has a preflash measurement with the normal 6 segment metering which is also coupled to the AF sensor (coupling can be switch off). It calculated the amount of over oder underexposer for this special situation . During the flash one intergal sensor which is measures from the film plain?? is switching the flash off in dependence of the preflash. regards R�diger
