Olympus E-3 User Manual page 25

etc.) without the camera trying to "cancel out" the sideways
movement as you swing the camera to follow your subject.
If the camera has been set to LIVE VIEW mode, pressing this
button in will activate the image stabiliser (you will hear and feel
a vibration as the sensor movement mechanism gets to work)
but, if you are hand-holding the camera, the image on the screen
will stabilise noticeably. This is even more apparent if you are
using a long lens.
As this operation uses a lot of battery power, and is of limited
practical use unless you need to home-in on an area of small
detail that is difficult to observe without the stabiliser being
active, it is not suggested that it be used as an everyday option.
Remember, that while the camera is built to a high standard of
durability, one second of operation of the stabiliser in live-view
mode is the equivalent (in working life terms) of taking 30 frames
at 1/30 second shutter speed with the stabiliser activated. It is
the author's suggestion that it only be used in live view mode
when absolutely necessary. It is better to use a tripod if you
intend using the live-view mode with long lenses for extended
periods where stability is required.
Situated below the IS button is the ON/OFF switch. Move the
lever from OFF to ON and you will see a small blue light pulsing
to the left of the switch. This indicates operation of the
Supersonic Wave Filter (SSWF) which is activated whenever the
camera is switched-on, a lens has been changed or when live
view mode is de-activated.
If the IS setting is at either of the active modes (IS1 or IS2),
then you will feel and hear a vibrating sound for about a second
when switching the camera off. This is normal and is due to the
IS system re-setting itself.
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