Canon EF 70-300mm f/4-5.6 IS USM Instruction page 10

Tips on Using the Image Stabilizer
¡The Image Stabilizer cannot compensate
for a blurred shot caused by a subject that
moved.
¡Set the STABILIZER switch to
you are taking pictures using the Bulb
setting (long exposures). If the
STABILIZER switch is set to
image stabilizer function may introduce
errors.
¡The Image Stabilizer might not be fully
effective in the following cases:
• You shoot while riding on a bumpy road.
• You move the camera dramatically for a
panning shot in Mode 1.
• You shoot using techniques other than
following shots in Mode 2.
¡The Image Stabilizer consumes more
power than normal shooting, so fewer
shots can be taken if you use the
function.
¡The image stabilizer operates for about
two seconds even when your finger is off
the shutter button. Do not remove the lens
while the stabilizer is in operation. This
will cause a malfunction.
¡With the EOS-1V/HS, 3, 30/33/Elan7/7E,
30V/33V/Elan7N/7NE, Elan ll/Elan ll
E/50/50 E, 300/Rebel2000, IX, and D30,
when
the Image Stabilizer will not work during
self-timer operation.
, the
¡When you use a tripod, the Image
Stabilizer should be turned off to save
battery power.
¡The stabilizer is equally effective for hand-
held photography and photography with a
monopod.
¡The image stabilizer function also
operates when the lens is used with an
Extension Tube EF12 ll or EF25 ll.
¡Pictures may look distorted after being
taken depending on the camera, but this
doesn't affect shooting.
¡If you set the camera's Custom Function
to change the assigned button to operate
the AF, the Image Stabilizer will operate
when you press the newly assigned AF
button.
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