Olympus 170 - Manual (Page 53)

VISUAL CONFIRMATION FINDER
(for DELUXE model only)
This camera incorporates a
shutter release visual
confirmation function. This
momentarily darkens the
viewfinder during shutter release
to provide you with confirmation
that the shutter has been
released.
If you do not want to use this
function, keep the SET button
pressed until the VF indication
goes out (5 sec or more). To use
the function again, keep the SET
button pressed until the VF
indication lights (5 sec or more).
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