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Canon EF 300mm f/4L IS USM Instruction

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EF300mm F4L IS USM
Instruction

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  Summary of Contents for Canon EF 300mm f/4L IS USM

  • Page 1 EF300mm F4L IS USM Instruction...
  • Page 2 Thank you for purchasing a Canon product. Developed for Canon EOS cameras, the Canon EF 300mm f/4L IS Ultrasonic lens is an interchangeable SLR lens equipped with a dual-mode Image Stabilizer (IS). The Image Stabilizer reduces blur caused by camera shake approximately two full shutter speeds compared to normal handheld shooting.
  • Page 3: Safety Precautions

    a Safety Precautions (1) 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 can cause a fire. (2) Do not look at the sun or a bright light source through the lens or camera.
  • Page 4 Nomenclature Focus mode switch Tripod collar index Image Stabilizer mode switch Built-in hood Distance scale window Lens mount index STABILIZER MODE STABILIZER Focusing ring Contacts Image Stabilizer switch Tripod collar mount Distance range limiter switch ENG-3...
  • Page 5: Attaching And Detaching The Lens

    1. Attaching and Detaching the Lens ■ Attaching the lens to the camera Remove the lens dust cap by turning it counterclockwise. Align the lens mount index with the red dot on the camera. Then turn the lens clockwise until it locks in place.
  • Page 6: Setting The Focus Mode

    2. Setting the Focus Mode To enable autofocus, set the focus mode switch to AF. To focus manually, set the focus mode switch to MF and turn the focusing ring. 3. Switching the Focusing Distance Range One of two focusing distance ranges can be set with the focusing limiter switch: 1.5 m - infinity or 3 m - infinity.
  • Page 7: Full-Time Manual Focusing

    4. Macro Mechanism This lens is equipped with a macro mechanism for low magnification close-up photography. Autofocus function is also possible in the macro range as in normal shooting. If a picture with maximum magnification and minimum field of view coverage is required in the macro range, set the AF mode to manual, turn the manual focusing ring to the...
  • Page 8: Using The Image Stabilizer

    STABILIZER MODE STABILIZER 6. Using the Image Stabilizer Turn on (|) the Image Stabilizer switch. Set the Image Stabilizer Mode switch to 1 or 2. (For normal use, set to 1.) Press the shutter button halfway to activate the Image Stabilizer. ■...
  • Page 9 • If the camera’s Custom Function is used to alter the AF activation method, the Image Stabilizer will be activated by the altered method. • Before shooting, look through the viewfinder and check that the image has been stabilized. • The Image Stabilizer operates normally even with Extender EF 1.4× ll attached. •...
  • Page 10 • Do not turn on (|) the Image Stabilizer switch when using the camera on a tripod. Doing so may cause Image Stabilizer misoperation. Turn off the Image Stabilizer before using the camera on a tripod. • For bulb exposures, turn off (○) the Image Stabilizer switch to prevent misoperation. •...
  • Page 11 5 10 7. Infinity Compensation Mark To compensate for shifts in the lens’ infinity position on the distance scale due to temperature changes, the focusing ring can be turned slightly beyond the normal infinity position. In room temperature, the infinity position on the distance scale is indicated by the L symbol which should be aligned with the distance scale...
  • Page 12 STABILIZER MODE STABILIZER ■ Attaching the tripod collar Detach the lens from the camera. Turn the tripod collar’s lock nut to loosen. Align the tripod collar’s red dot with the lens mount index, then align the tripod collar’s index mark with the lens’...
  • Page 13 10. Filters (Sold separately) The lens accepts up to two screw-on filters. When a polarizing filter is required, use Canon’s PL-C 77mm II polarizing filter. • The polarizing filter cannot be used together with a normal filter. • A polarizing filter attached to...
  • Page 14: Major Specifications

    12. Major Specifications Focal Length and Max. Aperture: 300mm, f/4 Construction: 15 elements in 11 groups Angle of View (Diagonal, vertical, horizontal extents): 8˚15’, 4˚35’, 6˚50’ Max. Magnification and Picture Field: 0.24×, 101 mm × 150 mm (at 1.5 m) Min.
  • Page 15 2006.9.1 CT1-7514-006 © CANON INC. 2002...