Canon EF400MM User Manual

EF400mm f/4 DO IS USM  
ENG  
Instruction  
a Safety Precautions  
T
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  
harmfl interference in a residential installation. This equipment  
generes, uses and can radiate radio frequency energy and, if not  
alled and used in accordance with the instructions, may cause  
hrmful interference to radio communications.  
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.  
Do not stand on the lens case. Falling off the case  
could result in injury.  
Do not stack lens cases. A falling lens case could  
cause an injury.  
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.  
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.  
• 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.  
a Shooting Precautions  
• Do not leave the lens in excessive heat such as in a  
car in direct sunlight. High temperatures can cause  
the lens to malfunction.  
If a very bright spotlight like a mercury lamp is  
photographed in a dark place with this lens, a  
halo of light may occasionally appear around the  
light source because of the DO elements.  
ENG-2  
Nomenclature  
Hood mount (10)  
Focusing ring (5)  
Focusing distance range selection switch (5)  
Distance scale (6)  
Strap mount (4)  
Drop-in filter (12)  
Rubber ring (4)  
AF stop button  
(6)  
Contacts (4)  
Focus mode switch (5)  
Lens mount index (4)  
Image stabilizer switch (7)  
Tripod mount (11)  
Image stabilizer mode selector switch (7)  
Tripod collar index (11)  
Orientation locking knob (11)  
For detailed information, reference page numbers are provided in parentheses (**).  
ENG-3  
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  
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.  
• 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.  
Attaching the strap  
• 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  
K
index of the dust cap as shown  
in the diagram, and turn clockwise. To remove it,  
reverse the order.  
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.  
ENG-4  
2. Setting the Focus  
Mode  
3. Switching the Focusing  
Distance Range  
To shoot in autofocus (AF) 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.  
You can set the focusing distance range to  
5 m/11.5 ft. to infinity or 8 m/26.2 ft. to infinity.  
By setting the suitable focusing distance range,  
the actual autofocusing time can be shorter.  
If you autofocus outside the set focusing distance  
range, the lens may stop focusing at the start of  
the focusing range; however, this is not a  
malfunction. Press the shutter release button  
halfway again.  
After autofocusing in ONE SHOT AF mode, focus  
manually by pressing the shutter button halfway  
and turning the focusing ring. (Full-time manual  
focus)  
ENG-5  
• The AF stop function also works in AI Servo AF  
mode.  
• By setting the camera's Custom Function, you  
can change the AF stop button's function. For  
details, see the camera's instruction manual.  
4. AF Stop Button  
5. Infinity Compensation Mark  
Infinity compensation mark  
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 wi
continue as before.  
Distance index  
• 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.  
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.  
ENG-6  
6. Image Stabilizer Settings  
You can use the image stabilizer in AF or MF mode.  
Set the STABILIZER switch  
to  
Select the stablizer mode.  
When you press the shutter  
button halfway, the Image  
Stabilizer will start  
.
• MODE 1rets vibrations  
in aldirecs. It is mainly  
effective for shooting still  
subjects.  
• MODE 2: It compensates for  
vertical camera shake during  
following shots in a horizontal  
direction, and compensates for  
horizontal camera shake  
during following shots in a  
vertical direction.  
• If you are not going to use the  
image stabilizer function, set  
operating.  
the switch to  
.
• Make sure the image in the  
viewfinder is stable, then press  
the shutter button the rest of  
the way down to take the  
picture.  
ENG-7  
7. Tips on Using the Image Stabilizer  
The image stabilizer in this lens is effective for hand-held shots under the following conditions.  
MODE 1  
MODE 2  
• In semi-darkened areas such as indoors or  
outdoors at night.  
• When panning subjects in motion.  
• In locations where flash photography is  
prohibited, such as art museums and theater  
stages.  
• In situations where your footing is uncertain.  
• In situations where fast shutter settings cannot  
be used.  
ENG-8  
Tips on Using the Image Stabilizer  
• The Image Stabilizer cannot compensate for a  
blurred shot caused by a subject that moved.  
DCS1, DCS3, D2000, D6000, EOS-1V/HS, EOS-  
1N/DP/HS/RS, 3, ELAN 7E/ELAN 7/30/33, ELAN  
7NE/ELAN 7N/30V/33V, ELAN II/ELAN IIE/50/50E,  
REBEL X/REBEL XS/500, REBEL G/500N, REBEL  
2000/300, REBEL Ti/300V, REBEL T2/300X, REBEL  
K2/3000V, IX, IX Lite/IX7, 3000/88, 5000/888  
• With the EOS-1V/HS, 3, ELAN 7E/ELAN  
7/30/33, ELAN 7NE/ELAN 7N/30V/33V, ELAN  
II/ELAN II E/50/50E, REBEL2000/300, IX, and  
D30, the Image Stabilizer will not work during  
self-timer operation.  
Set the STABILIZER switch to  
when you are  
taking pictures using the Bulb setting (long  
exposures). If the STABILIZER switch is set to  
the image stabilizer function may introduce errors.  
• The Image Stabilizer might not be fully effective  
in the following cases:  
,
You shoot while riding on a bumpy road.  
You move the camera dramatically for a panning  
shot in Mode 1.  
You shoot using techniques other than following  
shots in Mode 2.  
• The Image Stabilizer consumes more power  
than normal shooting, so fewer shots can be  
taken if you use the function.  
• When you use a tripod, the Image Stabilizer  
should be turned off to save battery power.  
• The stabilizer is equally effective for hand-held  
photography and photography with a monopod.  
• The Image Stabilizer function also operates  
when the lens is used with the EF12 II or EF25  
II Extension Tube, and the EF1.4X II Extender.  
• Pictures may look distorted after being taken  
depending on the camera, but this doesn't affect  
shooting.  
The image stabilizer operates for about two  
seconds even when your finger is off the shutter  
button. Do not remove the lens while the stabilizer  
is in operation. This will cause a malfunction  
.
With Extender EF2X II attached to the lens, the  
Image Stabilizer will work with the following cameras:  
EOS-1Ds Mark III, EOS-1Ds Mark II, EOS-1Ds, EOS-  
1D Mark lll, EOS-1D Mark II N, EOS-1D Mark II, EOS-  
1D, EOS 40D, 30D, 20D, 20Da, 10D, 5D, DIGITAL  
REBEL XSi/450D, DIGITAL REBEL XTi/400D  
• If you set the camera’s Custom Function to  
change the assigned button to operate the AF,  
the Image Stabilizer will operate when you press  
the newly assigned AF button.  
DIGITAL, DIGITAL REBEL XT/350D DIGITAL,  
DIGITAL REBEL/300D DIGITAL, D60, D30, EOS  
ENG-9  
8. Hood  
The dedicated Lens Hood ET-120 helps to  
prevent stray light from entering the lens and  
protects the front of the lens from rain, snow or  
dust.  
To attach the hood, loosen the hood locking knob  
by turning it counterclockwise. Fit the hood onto  
the lens hood mount, and tighten the locking  
knob to fix it in place. Use the same procedure,  
in reverse, to remove the hood.  
ENG-10  
9. Using the Tripod Mount  
Adjusting the Revolving Mount  
You can loosen the orientation lock-knob on the tripod mount to allow it to rotate as needed to fit a  
particular camera model for switching between vertical and horizontal positions.  
Detaching  
First remove the lens from the camera and then remove the tripod mount from the lens as shown  
below. To attach the tripod mount, reverse the procedure.  
Loosen the orientation  
locking knob.  
Rotate the tripod mount and  
align the mounting indicator  
on the tripod mount with the  
one on the lens.  
Slide off the tripod collar  
away from the rear of the  
lens.  
ENG-11  
10.Drop-In Filters  
The lens comes with the drop-in Gelatin Filter  
Holder 52 holding a glass filter. The holder  
accepts commercially-available gelatin filters.  
Using a Gelatin Filter  
14mm  
14mm  
47mm  
47mm  
Removing and Installing  
To remove the drop-in filter, press in the left and  
right lock buttons and pull the filter holder straight  
up out of the slot.  
Lift up the holder’s retaining frame  
Trim the gelatin filter as shown in the figure,  
and mount it in the holder.  
To install the drop-in filter, push the filter holder  
Return the retaining frame to its closed  
position.  
straight down into the slot until it clicks into place.  
.
• The filter holder can be installed facing either forwards  
or backwards.  
The Drop-In Screw-Type Filter Holder 52 and  
Drop-In Circular Polarizing Filter PL-C52 are also  
available (Sold separately).  
Because the lens optics are designed to include a  
glass filter, you must always install the filter  
holder, even if no gelatin filter is fitted.  
ENG-12  
11.Extenders  
(Sold separately)  
With Extender EF1.4X ll or EF2X ll attached, the lens specifications will change as follows:  
Item  
With EF1.4X ll Extender  
With EF2X ll Extender  
Focal length (mm)  
Aperture  
560  
f/5.6 – 45  
4°25’  
800  
f/8 – 64  
3°5’  
Diagonal  
Vertical  
Angle of view  
2°25’  
1°40’  
2°35’  
0.24  
Horizontal  
3°40’  
Maximum magnification (×)  
0.17  
• First attach the Extender to the lens, then attach lens to the camera. Detach it from the  
camera in the reverse order. If you attach the lens o the camera first, misoperation may  
occur.  
With Extender EF2X II attached to the lens, only manual focus is possible. However, with the EOS-  
1Ds Mark III, EOS-1Ds Mark ll, EOS-1Ds, EOS-1D Mark lll, EOS-1D Mark ll N, EOS-1D Mark ll,  
EOS-1D, EOS-1V/HS, EOS-3 camera, autofocusing with the center focusing point is possible.  
• If you use an Extender on the lens mounted on a EOS A2/A2E/5, set the exposure  
compensation to -1/2 stop for the EF1.4X II or -1 stop for the EF2X II.  
• Only one Extender can be attached to the lens and camera.  
• Autofocusing is still enabled with Extender EF1.4X II attached.  
• When an Extender is attached, the AF speed will become slower by design to retain proper  
AF control.  
ENG-13  
12.Extension Tubes  
(Sold separately)  
13.Case  
You can attach Extension Tube EF12 II or EF25  
II for magnified shots. The shooting distance and  
magnification are shown below.  
Belt  
Camera-to-Subject  
Magnification  
Distance (mm)  
Lid  
Near  
2870  
2424  
Far  
Near  
0.16×  
0.20×  
Far  
EF12 II  
EF25 II  
13384  
6549  
0.03×  
0.07×  
Keyhole  
Lever  
Manual focusing is recommended for accurate  
focusing.  
When putting the lens into its case, follow the  
procedure below.  
Attach the hood in reverse, then attach the  
lens cap.  
Position the tripod mount straight upwards  
and lay the lens into the case.  
Secure the lens with the belt.  
Press the lever while holding the lid from the  
top, and lock it.  
ENG-14  
Specifications  
Focal Length & Max. Aperture  
Lens Construction  
Min. Aperture  
400mm, f/4  
17 elements in 13 groups  
f/32  
Angle of View  
Diagonal: 6°10’  
3.5 m  
Vertical: 3°30’  
Horizontal: 5°10’  
Min. Focusing Distance  
Max. Magnification & Field of view 0.12×, 197 × 296mm/7.7× 11.6 inch (at 3.5 m)  
Filter  
Drop-in 52-series  
128 dia. × 232.7mm/5 dia. × 9.1 inch  
1940g/67.9oz  
Max. Diameter & Length  
Weight  
Lens Hood  
Lens Cap  
Case  
ET-120  
ET-145  
Lens Case 400B  
• The lens length is measured from the mount surface to the front end of the lens. Add 26.5 mm when including the  
lens cap and dust cap.  
• The size and weight listed are for the lens only, except as indicated.  
• Closeup Lenses 250D/500D cannot be attached.  
• Aperture settings are specified on the camera.  
• All data listed is measured according to Canon standards.  
• Product specifications and appearance are subject to change without notice.  
ENG-15  
CT1-7531-006  
© CANON INC. 2002  
2009.7  

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