Olympus 170 - Manual (Page 40)

3. Reposition your subject in
the picture frame while
keeping the shutter release
button depressed halfway.
Then press the shutter
release button fully.
After the Spot mode has been
engaged or disengaged, check
the selftimer/remote control and
flash mode settings.
Focus and exposure can be
adjusted at a different point from
the autofocus frame using the
Spot mode.
40