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Summary of Contents for Canon 100-300mm F2.8 L IS USM

  • Page 1 Instructions...
  • Page 2 Thank you for purchasing a Canon product. Canon RF100-300mm F2.8 L IS USM is a Camera Firmware large aperture telephoto zoom lens for use with EOS R series cameras. 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 “IS”...
  • Page 3: Safety Precautions

    Safety Precautions Precautions to ensure that the camera is used Details pertaining to risks that may Caution safely. Read these precautions thoroughly. Make result in injury or damage to other sure all details are observed in order to prevent objects. Do not leave the product in places exposed to risks and injury to the user and other people.
  • Page 4: General Precautions

    General Precautions Handling Precautions Do not leave the product in excessive heat such as in a car in direct sunlight. High temperatures can cause the product to malfunction. If the lens is taken from a cold environment into a warm one, condensation may develop on the lens surface and internal parts.
  • Page 5 This device complies with Part 15 of the FCC Rules. CAN ICES-3(B)/NMB-3(B) 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.
  • Page 6 Nomenclature Lens function/focus preset selector switch (→ 11, 13) Focusing ring (→ 8) Focusing distance range selector switch (→ 9) Orientation locking knob Security slot (covered) (→ 19) Lens function buttons (AF stop buttons) (→ 13) Lens function/focus preset button (→ 11, 13) Hood mount (→...
  • Page 7 Ensuring that the lens can rest safely on its own is recommended, such as first mounting it on a tripod. Please refer to the camera’s instructions for Rubber rings can be replaced at a Canon details. Service Center. (chargeable) ENG-6...
  • Page 8: Attaching The Strap

    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. Before using the lens, check that the strap is attached securely, that it is not worn (damaged), etc.
  • Page 9: Setting The Focus Mode

    3. Setting the Focus Mode Focus mode switch Quickly turning the focusing ring may result in delayed focus. The lens’ focusing ring is electronic. With a camera capable of electronic full-time manual focus, manual focusing is possible in both One-Shot AF and Servo AF modes. However, this requires a change in camera settings.
  • Page 10 4. Setting the Focusing 5. Zooming Distance Range To zoom, turn the lens’ zoom ring. Focusing distance range selector switch Be sure to finish zooming before focusing. Zooming after focusing can affect the focus. You can set the focusing distance range with a Blurring may temporarily occur if the zoom ring is switch.
  • Page 11: Control Ring

    There are cases in which the sound of control ring operations may be recorded when shooting movies. The clicking sensation of the control ring can be removed by the Canon Service Center. (chargeable) ENG-10...
  • Page 12 7. Focus Preset By presetting any focusing distance, you can instantly focus at that point even while you are shooting a different subject. This function operates both in AF and MF mode. < Preset the Focusing Distance > Set the lens function/focus preset selector switch to PRESET.
  • Page 13 Focus Preset Use the focus preset function after zooming. If playback is performed at a different zooming position after presetting the focusing distance, an error from the preset distance will occur. All focus presets are initially at the lens’ mechanical limit in the infinity direction (not at infinity) when the lens is mounted on a camera.
  • Page 14 L-Fn, the assigned function will also be applied to the lens function/focus preset button. Angle positioning of the lens function buttons Lens function/focus preset button is adjustable by a Canon Service Center. (chargeable) ENG-13...
  • Page 15: Image Stabilizer

    9. Image Stabilizer Image stabilization corrects vibrations that occurs with hand-held shots. Image stabilizer switch Image stabilizer mode selector switch Set the STABILIZER switch to ON. Select an Image Stabilizer mode according to the application and shooting conditions. The Image Stabilizer will work in combination with cameras with in-body Image Stabilizer.
  • Page 16 Image Stabilizer The Image Stabilizer for this lens is suited to hand-held shots in the following conditions. MODE 1 Shooting still subjects In semi-darkened areas such as indoors or outdoors at night. In locations where a flash cannot be used, such as art museums and theater stages.
  • Page 17 Image Stabilizer The Image Stabilizer cannot compensate for a blurred shot caused by a subject that moved. The Image Stabilizer might not be fully effective in the following conditions: • Large shake or fast vibration • Panning in MODE 1 If using a camera that allows you to change the shutter mode setting, [Elec.
  • Page 18 10. Hood The custom lens hood cuts out unwanted light that can cause flare and ghosting and protects the front of the lens from rain, snow, and dust. ODetaching the Hood Loosen the hood lock knob by turning it counterclockwise and detach the hood. The hood can be reverse-mounted on the lens Lock knob for storage.
  • Page 19 11. Case Use the case to carry the lens. ① Fastener ① ② ② Case ④ ③ Attach all cushions inside the case as shown. Tripod mount Strap ② ① Cushion (U-shaped) ×1 Proper Way to Stow the Lens ② Cushion (square, small) ×2 ③...
  • Page 20: Tripod Mount

    The mount clicks at 4 positions, every 90°. Since the tripod mount requires special fastening, as a safety precaution, do not replace the mount yourself. Security Replacement with a monopod mount (sold slot separately) can be done at a Canon Service Center. (chargeable) Orientation locking knob ENG-19...
  • Page 21 14. Extenders (Sold separately) Use an extender RF1.4× or RF2× to shoot a larger image of a subject. Lens specifications when using an extender are as follows. RF1.4x WIDE TELE RF2x WIDE TELE Focal length (mm) Focal length (mm) Aperture f/4-f/32 f/4-f/32 Aperture...
  • Page 22 15. Filters (Sold separately) You can attach filters (ø112) to the filter mounting thread on the front of the lens. Only one filter may be attached. Detach the hood when adjusting the polarizing filter. ENG-21...
  • Page 23: Specifications

    Specifications Focal Length/Aperture 100-300mm f/2.8 18 groups, 23 elements Lens Construction f/2.8 Maximum Aperture f/22 Minimum Aperture Horizontal: 20° - 6°50’, Vertical: 14° - 4°35’, Diagonal: 24° - 8°15’ Angle of View Min. Focusing Distance 1.8 m Max. Magnification 0.16x (at 300 mm) Approx.
  • Page 24 The maximum diameter, length and weight listed are for the lens itself only. Close-up Lens 250D/500D cannot be attached because there is no size that fits the lens. All data listed is measured according to Canon standards. Product specifications and appearance are subject to change without notice.
  • Page 25 CT1-D277-A 1222SZ © CANON INC. 2022...

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