Canon f-2.8L, f-4L User Manual

EF300mm f/2.8L IS USMEF300mm f/2.8L IS USM

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EF400mm f/2.8L IS USMEF400mm f/2.8L IS USM EF500mm f/4L IS USMEF500mm f/4L IS USM EF600mm f/4L IS USMEF600mm f/4L IS USM

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Instructions

Thank you for purchasing a Canon product.

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Canon’s EF300mm f/2.8L IS USM, EF400mm f/2.8L IS USM, EF500mm f/4L IS USM and EF600mm f/4L IS USM are high-performance super-telephoto lenses, for use with EOS cameras.

● “IS” stands for Image Stabilizer.

● “USM” stands for Ultrasonic Motor.

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 stand on top of the lens case. You may fall and injure yourself. Do not pile lens cases on top of one another as they may fall and cause injury.

● Do not leave the lens in excessive heat such as in a

car in direct sunlight. High temperatures can cause the lens to malfunction.

Features

1. The Image Stabilizer gives the equivalent effect of a shutter speed two stops* faster.

2. Use of fluorite and UD lens elements giving superior definition.

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. An AF stop button to pause autofocus whenever desired.

6. Can be used with EF1.4× II/EF2× II extenders.

7. A focus preset function for advance storage of focusing positions in memory to allow instantaneous focusing.

8. Tight seal structure ensures excellent dustproof and drip-proof performance.

9. Designed for lighter weight with parts made of magnesium alloy.

* Based on [1/focal length] second.

Generally, it requires a shutter speed [1/focal length] second or faster to prevent camera shake.

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a Safety Precautions

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a 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.

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.

Conventions used in this instruction

Warning to prevent lens or camera malfunction or damage.

Supplementary notes on using the lens and taking pictures.

Attaching the strap

Thread the end of the strap through the strap mount on the lens and then back through the clasp on the strap. Pull the strap tight and check that there is no slack in the clasp.

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Nomenclature

2.5m

2.5m 6.4m

6.4m

STABILIZER

SET

MODE

FOCUS PRESET

1 2

CANON

LENS

CANON

LENS

300mm

1:2.8L

IS U

MADE

JAPAN

OFF

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Hood mount (→ 15)

Focusing ring (→ 5)

Focusing distance range selector switch (→ 5)

Distance scale (→ 8, 13)

Strap mount (→ 2)

Drop-in filter (→ 16)

Playback ring (→ 8)

AF stop button (→ 6)

Focus mode switch (→ 5)

Image stabilizer switch (→ 9)

Focus preset button (→ 7)

Image stabilizer mode selector switch (→ 9)

Focus preset switch (→ 7)

● The illustrations used in the explanations in this manual show the EF300mm f/2.8L IS USM, but

Orientation locking knob (→ 14)

Rubber ring (→ 4)

Contacts (→ 4)

Lens mount index (→ 14)

Tripod mount (→ 14)

the EF400mm f/2.8L IS USM, the EF500mm f/4L IS USM, and the EF600mm f/4L IS USM are all used in the same way.

● For detailed information, reference page numbers are provided in parentheses (→ **).

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1. Mounting and Detaching the Lens

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See your camera’s instructions for details on mounting and detaching the lens.

● 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.

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.

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2. Setting the Focus

2.5m

2.5m 6.4m

6.4m

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Mode

STABILIZER

ON OFF

Switching the Focusing Distance Range

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.

After autofocusing in ONE SHOT AF mode, focus manually by pressing the shutter button halfway and turning the focusing ring. (Full-time manual focus)

You can set the focusing distance range with a switch. By setting a suitable focusing distance range, the actual autofocusing time will be shorter.

Lens Ranges

EF300mm f/2.8L IS USM 2.5 m/8.2 ft. – 6.4 m/21.0 ft.

EF400mm f/2.8L IS USM 3 m/9.8 ft. – 10 m/32.8 ft.

EF500mm f/4L IS USM 4.5 m/14.8 ft. – 10 m/32.8 ft.

EF600mm f/4L IS USM

2.5 m/8.2 ft. – ∞

6.4 m/21.0 ft. – ∞ 3 m/9.8 ft. – ∞

10 m/32.8 ft. – ∞

4.5 m/14.8 ft. – ∞

10 m/32.8 ft. – ∞

5.5 m/18.0 ft. – ∞

5.5 m/18.0 ft. – 16.2 m/53.2 ft.

16.2 m/53.2 ft. – ∞

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Switching the Focusing Distance Range AF Stop Button

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If you use AF from outside the specified focusing distance range, the lens may stop focusing when it reaches the limit of the range. This is not a malfunction. If this occurs, press the shutter button halfway down again.

4. AF Stop Button

During autofocus operation, you can press the AF stop button to temporarily pause autofocus.

If the shutter button is still pressed halfway when the AF stop button is released, autofocusing will continue as before.

The AF stop function also works in AI Servo AF mode.

● With the EOS 630/600, RT, A2/A2E/5, or 10S/10

set to the AI Servo AF mode and continuous shooting, AF will not resume even after you let go of the AF stop button. Press the shutter release button halfway to resume AF.

● With the EOS A2/A2E/5 and 10S/10 set to the

Sports mode, AF will not resume even after you let go of the AF stop button. Press the shutter release button halfway to resume AF.

● You can change the functions of the AF stop

button using the camera’s Custom Function. For details, please refer to the camera’s instructions.

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