WHEN TO USE AE LOCK AND EXPOSURE
The following suggestions on when to use the
AE lock or exposure-adjustment control can serve
as starting points for trial; individual conditions
and taste will, of course, determine what exposure
you choose.
• In situations where there is a great brightness
difference between the subject and background
and the most important area is considerably darker
than the area surrounding it, use the AE lock to
lock the meter reading with the camera positioned
so the subject fills most of the finder, or set the
exposure-adjustment control at + 1/2 to +2 stops.
Examples are pictures with strong backlighting and
no fill-in illumination (such as photos A and B), or
subjects against a background of snow or light-
colored sand, unless the bright area occupies a very
small part of the frame.
• If the most important subject area is much
brighter than the rest of the picture, use the AE
lock as above or set the exposure-adjustment
control at —1/2 to -2 stops. Examples are subjects
in a spotlight or shaft of sunlight or against a very
dark background (such as photos C and D), unless
the background occupies only a small area in the
frame.
• When copying documents printed on white stock
or on other predominantly light-colored materials,
an adjustment of +1/2 to +2 stops may be
necessary. Similarly, you will probably want to
make an adjustment of —1/2 to —2 stops for
predominantly dark copy material, or that on a
dark background.
• When using an R60 (red) filter, adjust exposure
+ 1 stop.
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