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Canon RF 10-20mm F4 L IS STM Instructions Manual

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Summary of Contents for Canon RF 10-20mm F4 L IS STM

  • Page 1 Instructions...
  • Page 2 Thank you for purchasing a Canon product. Canon RF10-20mm F4 L IS STM is a ultra-wide Camera Firmware and Camera zoom lens for use with EOS R series cameras. Applications “IS” stands for Image Stabilizer. Please use the latest versions of firmware and “STM”...

  • Page 3: Safety Precautions

    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. Details pertaining to risks that may Warning result in death or serious injury.

  • Page 4: General Precautions

    Please refer to the Canon website or the camera’s User during zooming and focusing, even when the Manual to check if your camera allows focus breathing aperture value is set for aperture-priority AE or correction, how to set it, and points to note about it.
  • 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.
  • Page 6 Nomenclature Focusing ring (→ 7) Zoom ring (→ 8) Control ring (→ 8) Zoom position index (→ 8) Focus mode switch (→ 7) Rubber ring (→ 6) Gelatin filter holder (→ 13) Contacts (→ 6) Built-in lens hood (→ 12) Lens mount (→...

  • Page 7: Attaching And Detaching The Lens

    Turn the lens counterclockwise while pressing the camera’s lens release button. Detach the lens once it has stopped turning. Rubber rings can be replaced at Canon Service Center. (chargeable) Please refer to the camera’s instructions for details. ENG-6...

  • Page 8: Setting The Focus Mode

    2. Setting the Focus Mode Focus mode switch Quickly turning the focusing ring may result in delayed focus. The lens’ focusing ring is electronic. It is possible to set cameras that support electronic fulltime manual focusing to manual focusing when the camera is in the operational mode.

  • Page 9: 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-8...
  • Page 10 5. Lens Function Button (AF Stop Button) In the default settings, the lens function button Use as a AF stop button serves as a AF stop button. You can assign During autofocus operation, you can press an AF different functions to the button from the stop button to temporarily pause autofocus, and [Customize buttons] section of the camera.

  • Page 11: Image Stabilizer

    Set the image stabilizer switch to OFF when the Canon website. you are not going to use the Image Stabilizer. ** In addition to normal control, this reduced changes of the distortion around the screen periphery that often happen due to shaking with wide-angle lenses.
  • Page 12 Image Stabilizer The Image Stabilizer for this lens is suited to hand-held shots in the following conditions. In semi-darkened areas such as indoors or outdoors at night. In locations where the flash cannot be used, such as art museums and theater stages. In situations where your footing is uncertain.
  • Page 13 7. Lens Cap Lock knobs The lens cap can be attached by pinching the lock knobs and vertically aligning the lens cap with the built-in lens hood as shown in the diagram. The recessed sections of the lens hood that the cap locks on to are located at the front inside edge of the top and bottom petals.
  • Page 14 8. Filters (Sold separately) This lens has a gelatin filter holder at the rear. Download the filter template files, print them out, then lay the filter over the template and cut to match. Then insert the filter in the holder. Cut the gelatin filter to match the shape of the filter appropriate for your camera’s image sensor size.
  • Page 15 Filters (Sold separately) Only one gelatin filter with a thickness of 0.2 mm/0.008 in. or less may be used. When printing the template, make sure that the illustration size remains the same. Check that the printed-out size is the same as the measurements shown in the illustration. Cut the filter to the shape that matches your camera’s image sensor size.
  • Page 16 Filters (Sold separately) Insert the filter from the left or right of the holder, and get it all within the projections on both sides. Projections Bevel Insert the filter into the holder so that the bevel is on the Filter indicators bottom right as shown in the figure on the left.
  • Page 17 Filters (Sold separately) Check the filter after insertion. Fail (1) Fail (2) When the bevel is When the bevel has When the bevel has inside the diagonal line been cut too much not been cut enough When using a full-frame filter, check that the bevel at the bottom right is as shown in the OK example when the holder is on and the filter is pushed up to the top left.

  • Page 18: Specifications

    Specifications Focal Length/Aperture 10-20mm f/4 Lens Construction 12 groups, 16 elements Maximum Aperture Minimum Aperture f/22 Horizontal: 121°55′ - 84°, Vertical: 100°25′ - 62°, Angle of View Diagonal: 130°25′ - 94° Min. Focusing Distance 0.25 m/0.82 ft. Max. Magnification 0.12x (at 20 mm) Approx.
  • Page 19 * EOS R, RP, Ra, R5, R6 There are cases in which using the zoom function during continuous shooting may result in conspicuous image distortion. All data listed is measured according to Canon standards. Product specifications and appearance are subject to change without notice. ENG-18...
  • Page 20 CT1-D298-D 0923Ni © CANON INC. 2023...

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