The Minolta 9000īs multiple-exposure button enables cocking the shutter without advancing the film. When multiple exposures are made, the frame number does not change until film is actually advanced. To use:
  1. Make the first exposure in the usual way.
  2. While pressing multiple-exposure button all the way in, operate film-advance lever to cock shutter for the next exposure.
  3. Repeat steps 1 and 2 to make additional exposures. After making the final exposure, release multiple-exposure button and operate film-advance lever. This will advance film to the next frame.

Determining exposure
The following suggestions can serve as basic starting points for determining correct exposure. However, subject matter, lighting conditions and your own intentions will all determine the final results.
When making two exposures of evenly illuminated subjects that fill most of the frame, set exposure adjustment to -1.0. This will decrease exposure for each shot by one half and the cumulative exposure should be correct. For four exposures, set adjustment to -2.0, and so on.
For multiple exposures of subjects against a dark background which do not overlap each other, exposure adjustment is not usually required.