Canon lens EF 2470mm f4L IS USM User Manual

Instructions
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EF24-70mm f/4L IS USM
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Thank you for purchasing a Canon product.
Canon’s EF24-70mm f/4L IS USM is a high-
performance standard zoom lens, for use with 
EOS cameras. The lens is installed with an Image 
Stabilizer, and allows for close-up shooting up to a 
magnification of 0.7x when the zoom ring is set to 
macro. 
●●“IS” stands for Image Stabilizer.
●● “USM” stands for Ultrasonic Motor.
Features
1. The Image Stabilizer provides the effect of 
having 
a shutter speed about four stops faster 
during normal shooting.*
 This...

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 Safety Precautions
 Safety Precautions
●●Do not look at the sun or a bright light source 
through the lens or camera.  Doing so could result in 
loss of vision. Looking at the sun directly through the 
lens is especially hazardous. 
●● Whether it is attached to the camera or not, do not 
leave the lens under the sun without the lens cap 
attached.  This is to prevent the lens from concentrating 
the sun’s rays, which could cause a fire.
Conventions used in this instruction
 Warning to prevent lens...

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This device complies with Part 15 of the FCC Rules. 
Operation is subject to the following two conditions: (1) This 
device may not cause harmful interference, and (2) this 
device must accept any interference received, including 
interference that may cause undesired operation.
Do not make any changes or modifications to the equipment 
unless otherwise specified in the instructions. If such 
changes or modifications should be made, you could be 
required to stop operation of the equipment.
This...

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Nomenclature
●● For detailed information, reference page numbers are provided in parentheses (→  **).
Focus mode switch (→ 6)
Distance scale ( → 12)
Zoom ring (→ 6)
Rubber ring
(→ 5)
Hood mount (
→ 17)
Filter Mounting Thread
(→ 18) Focusing ring ( → 6)
Image stabilizer switch ( → 13) Lens mount index (
→ 5)
Contacts (→ 5) Zoom ring lock lever
(also serves as a 
macro switch)
(→ 7, 8)
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1. Mounting and Detaching the Lens
See your camera’s instructions for details on 
mounting and detaching the lens.The lens mount has a rubber ring for enhanced 
dust- and water-resistance. The rubber ring may 
cause slight abrasions around the camera’s lens 
mount, but this will not cause any problems. If the 
rubber ring becomes worn, it is replaceable by a 
Canon Service Center at cost.
●●After detaching the lens, place the lens with 
the rear end up to prevent the lens surface and 
contacts from...

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2. Setting the Focus Mode3.  Zooming
After autofocusing in ONE SHOT AF mode, focus 
manually by pressing the shutter button halfway 
and turning the focusing ring. (Full-time manual 
focus)
To shoot in autofocus (AF) mode, set the focus 
mode switch to AF.
To shoot in manual focus (MF) mode, set the 
focus mode switch to MF, and focus by turning 
the focusing ring. 
The focusing ring always works, regardless of 
the focus mode.To zoom, rotate the zoom ring.
Be sure to finish zooming before...

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4. Fixing the Zoom Ring
The zoom ring can be fixed to keep the lens at the shortest point. This function is convenient for
carrying a camera on a strap because it prevents the lens from extending. 
2 Slide the zoom ring lock 
lever in the direction 
indicated by the arrow.
●● To release the zoom ring, 
slide the zoom ring lock lever 
in the direction opposite to 
the arrow.
1 Rotate the zoom ring to the 
widest 
position (24 mm).
The zoom ring can only be locked at maximum wide angle.
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5. Setting for Close-up Shooting
Setting the zoom ring to macro allows for close-up shooting.●●After the zoom ring has been set to macro, the zoom ring can only be operated within the macro 
range (indicated by the yellow line).
●● To set the zoom ring back to the normal zoom range, slide the macro switch (zoom ring lock lever) 
to MACRO (just as in step 1). While keeping your finger on the lever, rotate the zoom ring toward 
the wide end. Release the lever once the zoom ring is set to the normal...

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6. Close-up Shooting
The yellow line on the distance scale indicates the range in which image degradation is minimal during 
close-up shooting.* The following procedure shows how to focus within the range indicated by the 
yellow line in order to capture photos with high definition.
* However, maximum magnification is 0.5x when shooting within the range indicated by the yellow line on the distance scale.
We recommend using a tripod for close-up (macro) shooting.
2 Adjust the zoom ring and 
position...