7. Shoot your images from a tripod.
Once you’ve selected a Number of shots, the camera
remembers the value and comes back to it for the next
session. To repeat another Multiple exposure series with the
same settings, you’ll have to use screen 2 again. Select Done
and press the OK button. That prepares the camera to do the
Multiple exposure series in the same way as last time. The
camera remembers the previous Number of shots and other
settings until you reset them using screen 2 of Figure 3-55.
Understanding Auto Gain
Auto gain defaults to On, so you need to understand it well.
Let’s discuss it in detail.
Auto gain only applies if you want to make a number of
exposure segments with the exact same exposure value for
each. If you want to make two exposures, the camera will
meter for a normal exposure and then divide the exposure in
half for the two shots. For three shots, it will divide the
exposure by one third, four shots by one quarter, eight shots
by one eighth...and so forth.
In other words, it will divide the normal exposure for a single
shot by the number you entered on the Number of shots
screen so that when you are done, you have the equivalent of
a single good exposure. Does this make sense?
Another way of looking at it is this: If I want a two-shot
Multiple exposure, I normally want the background to get half
of a normal exposure in each shot so that it will appear
normal in the final image. Auto gain does that automatically.
If I need four shots, I only want the background to get a
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