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ENG-2

 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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Summary of Contents for EF24-70mm f/2.8L USM

Page 1: ...Instructions ENG EF24 70mm f 2 8L II USM COPY ...

Page 2: ...cal 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 Manual focusing is available after the subject comes into focus in autofocus mode ONE SHOT AF 5 Circular aperture for producing beautiful softfocus images 6 Tight seal structure...

Page 3: ...uction 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 Th...

Page 4: ...asonable 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 in...

Page 5: ...formation reference page numbers are provided in parentheses Distance scale 8 Focus mode switch 6 Hood mount 9 Lens mount index 5 Contacts 5 Rubber ring 5 Zoom ring 6 Filter Mounting Thread 10 Focusing ring 6 Zoom ring lock lever 7 COPY ...

Page 6: ...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...

Page 7: ...ull 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 COPY ...

Page 8: ...amera 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 COPY ...

Page 9: ... 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 index Infinity compensation mark COPY ...

Page 10: ...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...

Page 11: ...stance Range mm Magnification Close distance Long distance Close distance Long distance EF12 II 24mm 178 190 0 63 0 50 70mm 259 523 0 45 0 18 EF25 II 24mm Incompatible 70mm 229 331 0 74 0 41 You can attach filters to the filter mounting thread on the front of the lens Only one filter may be attached If you need a polarizing filter use the Canon Circular Polarizing Filter PL C B 82 mm To adjust the...

Page 12: ... measured according to Canon standards Product specifications and appearance are subject to change without notice Focal Length Aperture 24 70mm f 2 8 Lens Construction 13 groups 18 elements Minimum Aperture f 22 Angle of View Diagonal 84 34 Vertical 53 19 30 Horizontal 74 29 Min Focusing Distance 0 38 m 1 25 ft Max Magnification 0 21x at 70 mm 2 76 inch Field of View 369 x 554 134 x 202 mm 14 53 x...

Page 13: ...CT1 8579 005 0812Ni CANON INC 2012 COPY ...

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