Shutter speed scale on the at dial, Aperture scale on the at dial – Canon A-1 User Manual
Page 64
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Shutter Speed Scale on the AT Dial
There is a choice of 16 click-stop settings
ranging from 1/1000 (sec.) to 30 (sec.) on
the ЛТ dial’s shutter speed scale. The slow
shutter speeds from 2 (sec.) to 30 (sec.) are
marked in orange while shutter speeds from
1 (sec.) to l/IOOO (sec.) are in white. The
while numbers on the scale are the reci
procals of the true shutter speeds so that a
white 2 indicates a speed of 1/2 sec. while a
white 1000 indicates a speed of 1/1000 sec.
Be careful not to confuse the slower orange
range with the faster white range.
Above the highest speed of I/1000 is the
“P” for programmed AE. Below the lowest
speed of 30 is the “B” setting. The dial will
not turn past the “P” or the “B”.
The
“B”
(Bulb)
setting
is
intended
for
exposures longer than 30 sec. When the
shutter speed is set at “B”, the shutter will
remain open as long as you press the shutter
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