Canon RF 400mm f/2.8 L IS USM Instructions Manual
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Canon RF 400mm f/2.8 L IS USM Instructions Manual

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Summary of Contents for Canon RF 400mm f/2.8 L IS USM

  • Page 1 Instructions...
  • Page 2 Thank you for purchasing a Canon product. Canon RF400mm F2.8 L IS USM and Camera Firmware RF600mm F4 L IS USM are super-telephoto lenses for use with EOS R series cameras. Please use the latest version of firmware with the camera in use.

  • 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 Image stabilizer mode selector switch (→ 16) Image stabilizer switch (→ 16) Orientation locking knob Security slot (covered) (→ 23) Hood mount (→ 19) Strap mount (→ 7) Drop-in filter (→ 24) Lens mount index (→ 6) Lens mount (→ 6) Contacts (→...

  • Page 7: Attaching And Detaching The Lens

    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 at cost. 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 Focusing ring 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 always possible whenever camera operations are possible.
  • Page 10 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 lens is prevented from focusing on a subject at an unintended distance. Focusing distance range Lens Ranges...
  • Page 11 AF stop buttons to the camera's instructions for details. Angle positioning of the AF stop buttons is adjustable by a Canon Service Center at cost. During autofocus operation, you can press an AF stop button to temporarily pause autofocus, and then release the button to resume.
  • Page 12 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.
  • Page 13 Focus Preset Two Presets Focus preset button Hold down the focus preset button to preset two focusing distances. Hold down < Preset the Focusing Distance > Focus the lens at a focusing distance you want to preset. Hold down the focus preset button briefly (at least 1 second), and then immediately turn the playback ring left or right to preset the Focus preset switch...
  • Page 14 Focus Preset When setting two presets, holding down the focus preset button briefly but then not turning the playback ring causes the lens to beep three times and cancel presetting. Set presets from the start again. The camera may turn off while setting two presets. Press the shutter button halfway, and then set presets from the start again.
  • Page 15 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. Playback ring Focus preset switch Focus mode switch Set the focus preset switch to OFF, and the focus mode switch Turn the playback ring to PF.

  • Page 16: Manual Focus (Mf)

    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. Speed 3 is recommended for fine focusing.

  • Page 17: 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. If you are not going to use image stabilization, set the image stabilizer switch to OFF.
  • Page 18 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 19 Image Stabilizer The Image Stabilizer cannot compensate for a Setting the STABILIZER switch to OFF is blurred shot caused by a subject that moved. recommended when you are taking pictures The Image Stabilizer might not be fully effective using the Bulb setting (long exposures). If the in the following conditions: STABILIZER switch is set to ON, the Image •...
  • Page 20 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. Lock knob The hood can be reverse-mounted on the lens for storage.
  • Page 21 11. 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. Attaching the Lens Cap to the Lens Lens Attach the lens cap by slipping it directly over the...
  • Page 22 Lens Cap 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*.
  • Page 23 12. Case Use the case to carry the lens. ① Fastener ① ② ② Case ④ ③ ② Strap Attach all cushions inside the case as shown. ① Cushion (U-shaped)* Drop-in filter ×1 Tripod mount ② Cushion (square, small) ×2 ③...

  • Page 24: Tripod Mount

    Since the tripod mount requires special fastening, as a safety precaution, do not replace the mount yourself. Security slot Replacement with a monopod mount (sold separately) can be done at a Canon Service Orientation locking knob Center at cost. ENG-23...
  • Page 25 15. Drop-In Filters The Canon Drop-In Filter 52(WIII) series 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...
  • Page 26 The Drop-In Gelatin Filter Holder 52(WIII) and Because the lens optics are designed to include Drop-In Circular Polarizing Filter PL-C52(WIII) a filter, you must always attach either a Canon are also available (sold separately). PROTECT filter or a commercially available filter...
  • Page 27 16. 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. RF400mm F2.8 L IS USM RF600mm F4 L IS USM Lens Extender RF1.4× RF2×...

  • Page 28: Specifications

    The maximum diameter, length and weight listed are for the lens itself only. The Close-up Lenses 250D and 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-27...
  • Page 29 CT1-D193-A 2012SZ © CANON INC. 2020...

This manual is also suitable for:

Rf 600mm f/4 l is usm

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