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Canon EF400MM manual

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Table of contents for the manual

  • Page 1

    EF400mm f/4 DO IS USM Instruction ENG C OP Y[...]

  • Page 2

    ENG-1 The Canon EF400mm f/4 DO IS USM lens is a high-performance, super telephoto lens dedicated to Canon EOS cameras. Besides having an Image Stabilizer , it is the world's first camera lens incorporating a m ulti-layer diffractive optical element (DO). The multi-la yer diffractive optical element is a rev olutionary element having the c hara[...]

  • Page 3

    ENG-2 a Safety Precautions 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 attac[...]

  • Page 4

    ENG-3 Nomenc lature Distance scale ( → 6) Strap mount ( → 4) Orientation locking knob ( → 11) Drop-in filter ( → 12) Lens mount index ( → 4) Contacts ( → 4) Focus mode switch ( → 5) Focusing distance range selection switch ( → 5) Image stabilizer mode selector switch ( → 7) Image stabilizer switch ( → 7) Tripod mount ( → 11) T[...]

  • Page 5

    ENG-4 • After detaching the lens, place the lens with the rear end up to prev ent the lens surface and electrical contacts from getting scratched. • If the contacts get soiled, scratched, or hav e fingerpr ints on them, corrosion or faulty connections can result. The camera and lens may not oper ate properly . • If the contacts get soiled or [...]

  • Page 6

    ENG-5 After autofocusing in ONE SHO T AF mode, focus manually by pressing the shutter b utton halfway and turning the focusing ring. (Full-time manual f ocus) If you autof ocus outside the set focusing distance r ange, the lens ma y stop focusing at the start of the focusing r ange; how ev er, this is not a malfunction. Press the shutter release bu[...]

  • Page 7

    ENG-6 4. AF Stop Button During autofocus operation, y ou can press the AF stop button to temporarily pause autof ocus. If the shutter button is still pressed halfw ay when the AF stop button is released, autof ocusing will continue as bef ore. • With the EOS 630/600, RT , A2/A2E/5, or 10S/10 set to the AI Servo AF mode and continuous shooting, AF[...]

  • Page 8

    ENG-7 6. Image Stabilizer Settings Y ou can use the image stabilizer in AF or MF mode. Select the stabilizer mode. • MODE 1: Corrects vibrations in all directions. It is mainly effectiv e for shooting still subjects. • MODE 2: It compensates for ver tical camera shake during f ollo wing shots in a hor izontal direction, and compensates for hori[...]

  • Page 9

    ENG-8 7. Tips on Using the Image Stabilizer ● MODE 1 ● MODE 2 The image stabilizer in this lens is eff ective f or hand-held shots under the following conditions. • In semi-darkened areas such as indoors or outdoors at night. • In locations where flash photograph y is prohibited, such as ar t museums and theater stages. • In situations wh[...]

  • Page 10

    ENG-9 Tips on Using the Image Stabilizer • The Image Stabilizer cannot compensate f or a b lurred shot caused b y a subject that moved. • Set the ST ABILIZER switch to when you are taking pictures using the Bulb setting (long e xposures). If the ST ABILIZER switch is set to , the image stabilizer function ma y introduce errors. • The Image St[...]

  • Page 11

    ENG-10 The dedicated Lens Hood ET -120 helps to prev ent 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 tur ning 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 r[...]

  • Page 12

    ENG-11 9. Using the T ripod Mount Adjusting the Rev olving Mount Y ou can loosen the or ientation lock-knob on the tripod mount to allow it to rotate as needed to fit a par ticular camera model f or switching between v er tical and horizontal positions. Detaching First remov e the lens from the camera and then remove the tripod mount from the lens [...]

  • Page 13

    ENG-12 10. Drop-In Filter s The lens comes with the drop-in Gelatin Filter Holder 52 holding a glass filter . The holder accepts commercially-av ailable gelatin filters. 14mm 14mm 47mm 47mm Removing and Installing To remov e the drop-in filter , press in the left and r ight lock b uttons and pull the filter holder straight up out of the slot. To in[...]

  • Page 14

    ENG-13 11. Extenders (Sold separately) • First attach the Extender to the lens, then attach the lens to the camera. Detach it from the camera in the re verse order . If y ou attach the lens to the camera first, misoperation may occur . • With Extender EF2X II attached to the lens, only manual f ocus is possible. Howev er , with the EOS- 1Ds Mar[...]

  • Page 15

    ENG-14 Camera-to-Subject Magnification Distance (mm) Near F ar Near Far EF12 II 2870 13384 0.16 × 0.03 × EF25 II 2424 6549 0.20 × 0.07 × 13. Case Belt Ke yhole Lever Lid Y ou can attach Extension T ube EF12 II or EF25 II for magnified shots . The shooting distance and magnification are shown below . 12. Extension T ubes (Sold separately) Manual[...]

  • Page 16

    ENG-15 Specifications Focal Length & Max. Aperture 400mm, f/4 Lens Construction 17 elements in 13 groups Min. Aperture f/32 Angle of View Diagonal: 6°10’ V er tical: 3°30’ Horizontal: 5°10’ Min. Focusing Distance 3.5 m Max. Magnification & Field of view 0.12 × , 197 × 296mm/7.7 × 11.6 inch (at 3.5 m) Filter Drop-in 52-series Max[...]

  • Page 17

    © CANON INC. 2002 CT1-7531-006 2009.7 C OP Y[...]