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T-Series Flash
Combined with a T-Series flash (except the T-45),
the OM77AF can be used for a variety of advanced
flash techniques, bounce or diffused lighting for
example, while correct exposure is assured by the
camera's TTL Direct "OTF" program, which con-
trols the amount of light emitted in accordance
with the distance of the subject. When using a
T-Series Flash, the aperture is set at f4, the shutter
speed is set at 1/100 sec., and a flash fired only
when a shutter speed of 1/100 sec. or slower is
required.
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Shutter speed
Aperture