Canon lens EF 2470mm f28L II USM User Manual

							Instructions
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EF24-70mm f/2.8L II USM
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Thank you for purchasing a Canon product.
Canon’s EF24-70mm f/2.8L II USM is a high-
performance standard zoom lens, for use with EOS 
cameras. 
●●“USM” stands for Ultrasonic Motor.
Features
1. Use of super UD lens elements, UD lens 
elements, and two types of aspherical lens 
elements giving superior definition.
2.
 
Using 
 a fluorine coating on the foremost and 
rearmost lens surfaces allows adhered dirt to be 
removed more easily than before.
3.
 
Ultrasonic 
 motor (USM) for fast, quiet autofocus.
4.
 
Manua
 l focusing is available after the subject 
comes into focus in autofocus mode (ONE 
SHOT AF).
5.
 
Circula
 r aperture for producing beautiful 
softfocus images.
6.
 
T
 ight seal structure ensures excellent dustproof 
and drip-proof performance.
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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 or camera malfunction 
or damage.
 Supplementary  notes on using the lens and 
taking pictures.
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.
●● Do not leave the lens in excessive heat such as in a car 
in direct sunlight.  High temperatures can cause the 
lens to malfunction.
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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 equipment has been tested and found to comply with 
the limits for a class B digital device, pursuant to part 15 
of the FCC Rules. These limits are designed to provide 
reasonable protection against harmful interference in a 
residential installation. This equipment generates, uses and 
can radiate radio frequency energy and, if not installed and 
used in accordance with the instructions, may cause harmful 
interference to radio communications.
However, there is no guarantee that interference will not 
occur in a particular installation. If this equipment does 
cause harmful interference to radio or television reception, 
which can be determined by turning the equipment off and 
on, the user is encouraged to try to correct the interference 
by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• 
 Increase 

the separation between the equipment and 
receiver.
• 
 Consult 

the dealer or an experienced radio/TV technician 
for help.
 Safety Precautions
This Class B digital apparatus complies with Canadian ICES-
003.
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Nomenclature
●● For detailed information, reference page numbers are provided in parentheses (→ **).
Distance scale (  8)
Focus mode switc\f ( 6)
Hood mount ( 9)
\bens mount index ( 5)Contacts
( 5)
Rubber ring
( 5)
Zoom ring ( 6)
Filter Mounting T\fr\wead
( 10) Focusing ring ( 6) Zoom ring lock leve\wr
( 7)
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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 getting scratched.
●● If the contacts get soiled, scratched, or have 
fingerprints on them, corrosion or faulty 
connections can result. The camera and lens 
may not operate properly. 
●● If the contacts get soiled or have fingerprints on 
them, clean them with a soft cloth.
●● If you remove the lens, cover it with the dust 
cap. To attach it properly, align the lens mount 
index and the   index of the dust cap as shown 
in the diagram, and turn clockwise. To remove it, 
reverse the order.
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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 focusing. Zooming 
after focusing can affect the focus. 
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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.  Infinity Compensation 
Mark
For accurate focusing in MF on subjects at infinity 
distance, look through the viewfinder while rotating 
the focusing ring.
To compensate for shifting of the infinity focus 
point that results from changes in temperature. 
The infinity position at normal temperature is the 
point at which the vertical line of the distance 
scale L mark is aligned with the distance index.
Distance indexInfinity compensation mark
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6. Hood
●Attaching
To attach the hood, align the hood’s attachment 
position mark with the red dot on the front of the 
lens, then turn the hood as shown by the arrow 
until the lens’ red dot is aligned with the hood’s 
stop position mark.●Removing
To remove the hood, hold down the button on 
the side and turn the hood in the direction of the 
arrow until the position mark on the hood aligns 
with the red dot. The hood can be reverse-
mounted on the lens for storage.
●●
If the hood is not attached properly, vignetting (darkening of the perimeter of the picture) may occur. 
●● When attaching or detaching the hood, grasp the base of the hood to turn it. To prevent deformation, do not 
grasp the rim of the hood to turn it.
The EW-88C hood cuts out unwanted light and protects the front of the lens from rain, snow, and 
dust. 
Button
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