About The Lens Image Stabilizer - Canon EOS 5D Mark III Instruction Manual

About the Lens Image Stabilizer

When you use the IS lens' built-in Image Stabilizer, camera shake is
corrected to obtain a sharper shot. The procedure explained here is
based on the EF 24-105mm f/4L IS USM lens as an example.
* IS stands for Image Stabilizer.
The Image Stabilizer cannot correct "subject blur", when the subject
moves at the time of exposure.
For bulb exposures, set the IS switch to <2>. If <1> is set instead,
Image Stabilizer misoperation may occur.
The Image Stabilizer may not be effective for excessive shaking such as
on a rocking boat.
The Image Stabilizer may not be effective when you use the
EF 24-105mm f/4L IS USM lens for panned shots.
The Image Stabilizer can operate with the lens focus mode switch set to
either <AF> or <MF>.
When using a tripod, you can still shoot with the IS switch set to <1>
with no problem. However, to save battery power, setting the IS switch to
<2> is recommended.
The Image Stabilizer is effective even when the camera is mounted on a
monopod.
42
Set the IS switch to <1>.
1
Also set the camera's power switch to
<1>.
Press the shutter button halfway.
2
The Image Stabilizer will operate.
Take the picture.
3
When the picture looks steady in the
viewfinder, press the shutter button
completely to take the picture.