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ENG-2

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Safety Precautions

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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.

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.

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.

This Class B digital apparatus complies with Canadian ICES-003.

COP

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Содержание EF 17-40mm f/4L USM

Страница 1: ...EF17 40mm f 4L USM Instruction ENG COPY ...

Страница 2: ... focus in autofocus mode ONE SHOT AF 4 A truly round aperture hole results in a nicer background blur 5 Tight seal structure ensures excellent dust proof and drip proof performance Since the front element of this lens moves when focusing zooming you need to attach a Canon PROTECT filter sold separately for adequate dust and water resistant performance Without a filter the lens is not dust or water...

Страница 3: ... 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 digit...

Страница 4: ... scale 6 Focus mode switch 5 Lens mount index 4 Contacts 4 Hood mount 7 Focusing ring 5 Gelatin filter holder 8 Filter mounting thread 7 Zoom ring 5 For detailed information reference page numbers are provided in parentheses COPY ...

Страница 5: ... After detaching the lens place the lens with the rear end up to prevent the lens surface and electrical 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 c...

Страница 6: ... mode set the focus mode switch to AF To use only manual focusing MF set the focus mode switch to MF and focus by turning the focusing ring The focusing ring always works regardless of the focus mode 2 Setting the Focus Mode After autofocusing in ONE SHOT AF mode focus manually by pressing the shutter button halfway and turning the focusing ring Full time manual focus COPY ...

Страница 7: ...e index The infrared index corrects the focus setting when using monochrome infrared film Focus on the subject manually then adjust the distance setting by moving the focusing ring to the corresponding infrared index mark The infrared index position is based on a wavelength of 800 nm The compensation amount differs depending on the focal length Use the indicated focal length as a guide when settin...

Страница 8: ...the lens and also protects the front of the lens from rain snow and dust 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 The hood can be reverse mounted on the lens for storage Part of the picture may be blocked if the hood is not atta...

Страница 9: ... gelatin filter ghosting may appear in the image You can attach Extension Tube EF12 II or EF25 II for magnified shots The shooting distance and magnification are shown below 9 Extension Tubes Sold separately Camera to Subject Magnification Distance mm Near Far Near Far EF12 II 17mm 155 159 0 83 0 70 40mm 206 271 0 59 0 32 EF25 II 17mm Incompatible 40mm 196 218 1 02 0 70 Manual focusing is recommen...

Страница 10: ...e up Lens enables close up photography The magnification will be as follows Can be used at the 40mm end magnification 0 30x 0 08x Close up Lens 250D cannot be attached because there is no size that fits the lens Manual focusing is recommended for accurate focusing COPY ...

Страница 11: ... Max Diameter and Length 83 5 96 8 mm 3 3 3 8 inch Weight 475 g 16 8 oz Hood EW 83E Lens Cap E 77U Case LP1319 The lens length is measured from the mount surface to the front end of the lens Add 21 5 mm when including the lens cap and dust cap The size and weight listed are for the lens only except as indicated The EF1 4X II EF2X II extenders cannot be used with this lens Aperture settings are spe...

Страница 12: ... CANON INC 2003 CT1 7546 006 2009 7 COPY ...

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