Olympus OM-3Ti Instructions Manual page 27

If you move the camera, another
the spot metered value.
Press the spot button to take a meter reading. You will hear
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an electronic sound and the word "SPOT" will appear in the
viewfinder. The metered value is displayed by the
mark.
mark will indicate the exposure value in the center of the frame along with
Set the bar graph tip to the fixed point between the arrows
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by adjusting the aperture and/or shutter speed rings.
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