Owner's Manual

Thank you for purchasing a Canon IS USM lens.
The Canon EF100-400mm f/4.5-5.6L IS USM
lens is a high-performance telephoto zoom lens
for EOS cameras. It is equipped with an image
stabilizer effective for hand-held shooting at slow
shutter speeds.
"IS" stands for Image Stabilizer.
"USM" stands for Ultrasonic Motor.
it Handling Cautions
If the lens is taken from a cold environment into a
warm one, condensation
may develop on the lens
surface
and internal parts. To prevent condensation in
this case, first put the lens into an airtight plastic bag
before taking it from a cold to warm environment. Then
take out the lens after it has warmed gradually. Do the
same when taking the lens from a warm environment into
a cold one.
Conventions used in this instruction
Warning
to prevent lens or camera malfunction
or damage.
Features
1. Fluorite and super UD lens elements for truly
exceptional imaging capability.
2. Dual mode image stabilizer with up to
two-stop shutter speed conversion.
• A second image stabilizer mode that is optimized
for continuous shooting (MODE
2) is provided.
• The image stabilizers can
be switched on and off
as needed.
3.
USM for fast, quiet focusing.
4. Manual focusing available in autofocusing
mode.
5. Adjustable zoom ring touch lets you lock at
any focal length.
6. Can be used with EF1.4x II or EF2x II
extenders.
• Extenders operate with manual focusing only.
• Image stabilizer will operate with extender*.
* Accoding to camera model. See page
9.
Supplementary notes on using the lens and
taking pictures.
ENG-1
Thank you for purchasing a Canon IS USM lens.
The Canon EF100-400mm f/4.5-5.6L IS USM
lens is a high-performance telephoto zoom lens
for EOS cameras. It is equipped with an image
stabilizer effective for hand-held shooting at slow
shutter speeds.
"IS" stands for Image Stabilizer.
"USM" stands for Ultrasonic Motor.
it Handling Cautions
If the lens is taken from a cold environment into a
warm one, condensation
may develop on the lens
surface
and internal parts. To prevent condensation in
this case, first put the lens into an airtight plastic bag
before taking it from a cold to warm environment. Then
take out the lens after it has warmed gradually. Do the
same when taking the lens from a warm environment into
a cold one.
Conventions used in this instruction
Warning
to prevent lens or camera malfunction
or damage.
Features
1. Fluorite and super UD lens elements for truly
exceptional imaging capability.
2. Dual mode image stabilizer with up to
two-stop shutter speed conversion.
• A second image stabilizer mode that is optimized
for continuous shooting (MODE
2) is provided.
• The image stabilizers can
be switched on and off
as needed.
3.
USM for fast, quiet focusing.
4. Manual focusing available in autofocusing
mode.
5. Adjustable zoom ring touch lets you lock at
any focal length.
6. Can be used with EF1.4x II or EF2x II
extenders.
• Extenders operate with manual focusing only.
• Image stabilizer will operate with extender*.
* Accoding to camera model. See page
9.
Supplementary notes on using the lens and
taking pictures.
ENG-1