EF400mm f/2.
Thank you for purchasing a Canon product. Canon’s EF400mm f/2.8L IS III USM is an Image Stabilizer-equipped super-telephoto lens for use with EOS cameras. OO “IS” stands for Image Stabilizer. OO “USM” stands for Ultrasonic Motor. Camera Firmware Please use the latest version of firmware with the camera in use. For details on whether the firmware is the latest version or not, and for details on updating the firmware, please check the Canon website.
Safety Precautions Precautions to ensure that the camera is used safely. Read these precautions thoroughly. Make sure all details are observed in order to prevent risks and injury to the user and other people. Warning D etails pertaining to risks that may result in death or serious injury. OO Do not look directly at the sun or other strong light sources through a lens or a single-lens reflex camera with a lens attached. This may result in loss of sight.
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.
General Precautions Handling Precautions Shooting Precautions OO 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.
Nomenclature Image stabilizer mode selector switch (→ 16) Image stabilizer switch (→ 16) Hood mount (→ 19) Distance scale (→ 19) Orientation locking knob Security slot (covered) (→ 23) Strap mount (→ 7) Drop-in filter (→ 24) Lens mount index (→ 6) Lens mount (→ 6) Contacts (→ 6) Rubber ring (→ 6) Focus mode switch (→ 8) Focusing distance range selector switch (→ 9) AF stop button (→ 10) Playback ring (→ 11, 14) Focusing ring (→ 8) Focus preset button (→ 11) Manual focus speed switch (→ 15) Focus preset
1. Attaching and Detaching the Lens Lens mount index Lens release button Attaching the Lens Align the lens mount indexes of the lens and camera, and turn the lens clockwise until you hear a click. Detaching the Lens Turn the lens counterclockwise while pressing the camera’s lens release button. Detach the lens once it has stopped turning. Please refer to the camera's instructions for details. OO Set the camera’s power switch to OFF when attaching or detaching the lens.
2. Attaching the Strap Strap mount Included 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. OO Before using the lens, check that the strap is attached securely, that it is not worn (damaged), etc.
3. Setting the Focus Mode Focusing ring Focus mode switch 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. See p. 14 for information on power focus (PF). OO Quickly turning the focusing ring may result in delayed focus. OO The lens’ focusing ring is electronic.
4. Setting the Focusing Distance Range Focusing distance range selector switch You can set the focusing distance range with a switch. By setting a suitable focusing distance range, the actual autofocusing time will be shorter. Focusing distance range ① FULL (2.5 m – ∞) ② 2.
5. AF Stop Buttons You can use the AF stop buttons to temporarily pause autofocus. AF stop buttons During autofocus operation, you can press an AF stop button to temporarily pause autofocus, and then release the button to resume. Press an AF stop button to maintain a focusing distance or to avoid focus search. Press the shutter button while holding down an AF stop button to shoot at that focusing distance. OO Autofocus will not resume even after you let go of an AF stop button in the following instances.
6. Focus Preset By using focus presets, you can turn the playback ring to focus the lens at any preset focusing distance. To use focus presets, set the focus preset switch to ON or . If set to , the lens beeps when being preset and when moving. Operation differs to set one preset or two presets. One Preset Set one focusing distance. Focus preset button < Preset the Focusing Distance > Focus the lens at a focusing distance you want to preset.
Focus Preset Two Presets Hold down the focus preset button to preset two focusing distances. < Preset the Focusing Distance > Focus preset button Hold down Focus the lens at a focusing distance you want to preset. Hold down the focus preset button (at least 1 second), and then immediately turn the playback ring left or right to preset the distance in memory for that direction. Focus preset switch Playback ring Use the same steps to preset another distance.
Focus Preset OO When setting two presets, pressing the focus preset button but then not turning the playback ring causes the lens to beep three times and cancel presetting. Set presets from the start again. OO The camera may turn off while setting two presets. Press the shutter button halfway, and then set presets from the start again. OO When not using focus presets, set the focus preset switch to OFF.
7. Power Focus (PF) By using power focus, you can turn the playback ring to change the focus smoothly. This is a useful feature for changing focus when shooting movies. Focus preset switch Focus mode switch Set the focus preset switch to OFF, and the focus mode switch to PF. Playback ring Turn the playback ring manually to change the focus. OOYou can make a 2-step change in power focus speed, depending on how much the playback ring is turned.
8. Manual Focus (MF) When shooting images using manual focus (MF), you can select the manual focus speed. Manual focus speed switch Use the manual focus speed switch to select a manual focus speed. Speed is fastest at 1, with 2 and 3 being progressively slower.
9. Image Stabilizer Image stabilization corrects vibrations that occurs with hand-held shots. Image stabilizer switch Set the STABILIZER switch to ON. OOIf you are not going to use image stabilization, set the image stabilizer switch to OFF. Image stabilizer mode selector switch Select an Image Stabilizer mode according to the application and shooting conditions. Camera shutter button Press the shutter button down halfway. Once you have a stable image, press down all the way to take the picture.
10. Tips on Using Image Stabilization The Image Stabilizer for this lens is suited to hand-held shots in the following conditions. MODE 1 Shooting still subjects OO In semi-darkened areas such as indoors or outdoors at night. OO In locations where a flash cannot be used, such as art museums and theater stages. OO In situations where your footing is uncertain. OO In situations where fast shutter speed settings cannot be used. MODE 2 Shooting moving subjects OO Panning shots of vehicles, trains, etc.
Tips on Using Image Stabilization OO The Image Stabilizer cannot compensate for a blurred shot caused by a subject that moved. OO The Image Stabilizer might not be fully effective in the following conditions: • Large shake or fast vibration • Panning in MODE 1 OO Setting the STABILIZER switch to ON consumes more power than when OFF. OO The Image Stabilizer operates for about two seconds even when your finger is off the shutter button. Do not detach the lens while the stabilizer is in operation.
11. Infinity Compensation Mark Infinity compensation mark CANON LENS EF 400mm 1:2.8L IS Ⅲ USM Distance scale 12. Hood The custom lens hood cuts out unwanted light and protects the front of the lens from rain, snow, and dust. ft m Distance index To compensate for shifting of the infinity focus point that results from changes in temperature, there is a margin at the infinity (∞) position.
13. Lens Cap The dedicated lens cap protects the front of the lens from shock and dust when the lens is stowed or not in use. This lens cap can also be attached to the hood as well as the lens. Lens Lens cap E-180E Attaching the Lens Cap to the Lens Attach the lens cap by slipping it directly over the end of the lens (hood mount) as shown. Draw the strings to affix the lens cap and prevent it from coming off easily.
Lens Cap E-18 0E Stowing the Lens Reverse the lens hood and slip it over the lens. Tripod mount Tighten the hood lock knob to fix the hood in place securely with the lock knob in a line with Hood the tripod mount. Attach the lens cap by slipping it on where the Draw strings hood lock knob is located as shown*. Use the hook and loop fastener and the strings to affix Hook and loop fastener Lock knob the lens cap and prevent it from coming off easily.
14. Case Use the case to carry the lens. ① ① ② Fastener ② Case ④ ③ Lid Attach all cushions inside the case as shown. ① Cushion (U-shaped)*1 ×1 ② Cushion (square, small) ×2 ③ Cushion (square, large) ×1 ④ Cushion (round)*2 ×1 *1 Attach ① where it holds the drop-in filter area of the lens. *2 ④ is attached to the bottom of the case. OO Before stowing the lens, be sure to attach all cushions inside the case. OO The lens should always be stowed in the proper way.
15. Tripod Mount A tripod or monopod attaches to the tripod mount on the lens. Switching the Orientation of the Image By loosening the orientation locking knob on the tripod mount you can rotate the camera and the lens to switch the image in any orientation (vertical, horizontal, etc.). The mount clicks at 4 positions, every 90°. 16. S ecurity Slot This lens is fitted with a security slot to prevent theft. The security slot is located under the cover for the orientation locking knob.
17. Drop-In Filters A 52(WIII)-series Canon drop-in filter can be used with the lens. Detaching Drop-In Filters To detach a drop-in filter, press in both lock buttons and pull the filter holder straight out of the slot. Attaching Drop-In Filters To attach a drop-in filter, push the filter holder straight down into the slot until it clicks into place. The filter holder can be attached facing either forwards or backwards.
Drop-In Filters OO Because the lens optics are designed to include a filter, you must always attach either a Canon PROTECT filter or a commercially available filter before attaching a Drop-In Screw-Type Filter Holder. OO Note that filter frame thickness may prevent some commercially available lens filters from being used. OO With EOS cameras that have a built-in flash, a drop-in filter may come in contact with the camera. Before attaching/detaching a drop-in filter, detach the lens from the camera.
18. Extenders (Sold Separately) Use an extender EF1.4× III or EF2× III to shoot a larger image of a subject. Lens specifications when using an extender are as follows. Focal length (mm) Aperture Horizontal Angle of view Vertical Diagonal Maximum magnification (×) EF1.4× III 560 f/4 – 45 3° 40’ 2° 25’ 4° 25’ 0.25 EF2× III 800 f/5.6 – 64 2° 35’ 1° 40’ 3° 05’ 0.36 19. Extension Tubes (Sold Separately) Use an extension tube EF12 II or EF25 II to get closer to a subject and shoot a larger image.
Specifications Focal Length/Aperture Lens Construction Minimum Aperture Angle of View Min. Focusing Distance Max. Magnification Field of View Filter Max. Diameter and Length Weight Hood Lens Cap Case 400mm f/2.8 13 groups, 17 elements f/32 Horizontal: 5° 10’ Vertical: 3° 30’ Diagonal: 6° 10’ 2.5 m/8.2 ft. 0.17× Approx. 202 × 135 mm/7.95 × 5.31 in. (at 2.5 m / 8.2 ft.) Any 52(WIII)-series drop-in filter 163 × 343 mm/6.42 × 13.50 in. Approx. 2840 g/100.
CT1-D037-A 1806SZ © CANON INC.
