Specifications

(B) Aperture Priority Crossover AE Variation
This chart shows the pattern used by the camera's
microprocessor to maintain the selected aperture
for as long as possible in relation to the shutter
speed, the lighting conditions and the "camera
shake" limit of the lens in use.
When shooting bright scenes with the 50mm lens
at f/8, for example, the camera maintains the
preset aperture until the fastest shutter speed of
1/1000 sec. is reached, and then varies to ensure
proper exposure as shown. For dark scenes it
holds to f/8 until the shutter speed reaches 1 i30
sec. (the "camera shake" limit for a 50mm lens).
At this point, it varies the aperture to stay above
the "camera shake" limit until the maximum
aperture is reached, then shifts the shutter speed
to the next slowest speed in order to assure a
proper exposure. (For exposures slower than 1/30
sec., a tripod is required to prevent picture blur).
The broken line indicates the exposure pattern in
the aperture priority AE mode without Crossover.