Canon EF50mm f/1.0L USM Manuel utilisateur

Instruction

EF50mm F1.2L USM

ENG-1

Thank you for purchasing a Canon USM lens.

The Canon EF50mm f/1.2L USM lens is a

high-performance, large-aperture standard

lens with a large-diameter, high-precision,

aspherical lens element designed for EOS

cameras.

The lens is suitable for portraits and other

types of photographs making full use of the

large-diameter lens feature for nice

background blur.

¡“USM” stands for Ultrasonic Motor.

Features

1. Large-diameter, high-precision aspheric lens

element for excellent imaging performance

even at the maximum aperture.

2. USM for fast, quiet focusing.

3. Manual focusing is available after the subject

comes into 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.

•The lens is dust- and water-resistant. However,

since the front lens element rotates during

focusing, dust and water can still enter from the

front. Attaching a filter is therefore necessary.

Without the filter, the lens will not be completely

dust- and water-resistant.

Conventions used in this instruction

Warning to prevent lens or camera

malfunction or damage.

Supplementary notes on using the lens

and taking pictures.

ENG-2

aSafety Precautions

1. 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.

2. 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.

aHandling 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.

his 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 digital apparatus does not exceed the Class B limits for radio

noise emissions from digital apparatus as set out in the

interference-causing equipment standard entitled “Digital

Apparatus”, ICES-003 of the Industry Canada.

N118

ENG-3

Distance scale (→ 5, 6)

Depth-of-Field scale (→6)

Contacts (→4)

Focus mode switch (→5)

Hood mount (→7)

Lens mount index (→4)

Filter mounting

thread (→7)

Infrared index (→6)

Focusing ring (→5)

Nomenclature

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

ENG-4

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

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, 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.

1. Mounting and Detaching the Lens

The lens mount has a rubber ring for enhanced

water- and dust-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.

ENG-5

3. Infinity Distance Mark

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 L mark is

aligned with the distance indicator on the

distance scale.

For accurate manual focusing on subjects at

infinity distance, look through the viewfinder while

rotating the focusing ring.

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)

To shoot in autofocus mode, set the focus mode

switch to AF.

To use only manual focusing, set the focus mode

switch to MF, and focus by turning the focusing

ring. The focusing ring always works, regardless

of the focus mode.

Infinity compensation mark

Distance index

ENG-6

5. Depth-of-Field Scale

The depth of field is the distance in front of and

behind the plane of focus on the subject that

appears sharp. The depth of field is indicated by

the area between the depth-of-field scale lines

below the distance scale. Numbers in the scale

are in F values, and for example, if the shooting

distance is 3m and the aperture is f/11, the

sharp area will extend from about 2m to 5m.

The depth-of-field scale is an approximate

indicator.

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.

4. Infrared Index

Some EOS cameras cannot use infrared film. See

the instructions for your EOS camera.

¡The infrared index position is based on a

wavelength of 800 nm.

¡Be sure to observe the manufacturer’s

instructions when using infrared film.

¡Use a red filter also when you take the picture.

ENG-7

7. Filters (Sold separately)

Gelatin Filter Holder (Sold separately)

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 Canon’s PL-C

72mm polarizing filter. Autofocusing is still

possible while it is attached.

¡To adjust the polarizing filter, first remove the

lens hood.

¡When the PL-C 72mm polarizing filter is

attached, the lens cap cannot be attached.

With the Gelatin Filter Holder, you can use filters

to create various effects.

The Gelatin Filter Holder compatibility is shown

below.

¡Gelatin Filter Holder lll:

Compatible (Hood cannot be used)

¡Gelatin Filter Holder lV:

No more than one hood can be attached.

Focus manually when the Gelatin Filter Holder is

used.

6. Hood

The ES-78 hood reduces annoying flare and also

protects the front of the lens from rain, snow,

dust, etc. Turn the hood clockwise to securely

attach it to the lens. The hood can be reverse-

mounted on the lens for storage.

¡Part of the picture may be blocked if the hood is

not attached properly.

¡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.

ENG-8

Extension Tubes (Sold separately)

With Extension Tube EF12 II or EF25 II, the

camera-to-subject distance and image

magnification will be as follows:

Camera-to-Subject

Magnification

Distance (mm)

Near Far Near Far

EF12 II 246 322 0.39×0.24×

EF25 II 204 218 0.67×0.53×

10.

Close-up Lenses (Sold separately)

Attaching a 500 or 500D (72mm) Close-up Lens

enables close-up photography.

Magnification will be 0.25×– 0.10×.

¡Sales of the 500 Close-up Lens may already be

terminated in some areas.

¡Close-up Lens 250D cannot be attached

because there is no size that fits the lens.

¡When using a Close-up Lens, focus manually.

When an Extension Tube is attached, focus

manually.

ENG-9

Specifications

Image Size 24 ×36 mm

Focal Length/Aperture 50 mm f/1.2

Lens Construction 6 groups, 8 elements

Minimum Aperture f/16

Angle of View Diagonal: 46° Vertical: 27° Horizontal: 40°

Min. Focusing Distance 0.45 m / 1.5 ft.

Max. Magnification 0.15 ×

Field of View 164 ×250 mm / 6.5 ×9.8 inch

Filter Diameter 72 mm / 2.8 inch

Max. Diameter and Length 85.8 ×65.5 mm / 3.4 ×2.6 inch

Weight 590 g / 20.8 oz

Hood ES-78

Lens Cap E-72U

Case LP1214

¡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.

¡Aperture settings are specified on the camera.

¡The EF1.4X II/EF2X II extenders cannot be used with this lens.

¡All data listed is measured according to Canon standards.

¡Product specifications and appearance are subject to change without notice.

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