RF Lenses

Canon RF 400mm F2.8L IS USM

Specifications

Specifications

  • Large f/2.8 maximum aperture

    For excellent low-light performance and depth-of-field control

  • Image Stablizer

    Built in optical IS providing 5.5 stops of protection against blur from camera shake

  • Dual Power AF

    A dual powered ring-type USM focusing drive is backed up by a high-speed CPU and optimized AF algorithms for quick, quiet focusing

  • Fluorite glass

    The RF 400mm F2.8L IS USM makes use of fluorite glass in its construction for increased image resolution and contrast

  • ASC coatings

    Even in tough lighting conditions, ghosting and flare is minimised by our Air Sphere Coating technology

  • Variable speed manual focusing

    Three manual-focus speeds are available, for precise control. Full Time MF allows adjustments to be made without switch focus modes

  • Focus presets

    Store two focus presets for quick recall, saving time when you need to react fast and letting you pull focus when shooting video

  • Native RF mount

    The RF 400mm F2.8L IS USM attaches directly to your EOS R series camera without an adapter, letting you take advantage of its advanced image quality

Specifications in detail

Optical Features / Specifications

  • Image Size
    Full Frame
  • Angle of View (Horizontal, vertical, diagonal)
    5°10', 3°30', 6°10'
  • Lens Construction (Elements/Groups)
    17/13
  • Special Optics
    2x Fluorite, 1X SUD
  • Number of Diaphragm Blades
    9
  • Minimum Aperture
    32
  • Closest Focusing Distance (m)
    2.5
  • Maximum Magnification (x)
    0.17
  • Control Ring
    No
  • Image Stabilizer OIS1
    5.5
  • Image Stabilizer IBIS x OIS2
    5.5
  • AF Actuator
    Ring USM
  • Coatings
    ASC, Super Spectra
  • Fluorine
    Front / Rear

Accessories

  • Lens Cap
    E-180E
  • Lens Hood
    ET-155(WIII)
  • Lens Case/Pouch
    Lens Soft case LS400
  • Rear End Cap
    Lens Dust Cap RF
  • Extender Compatibility
    Compatible with RF 1.4x & RF 2x Extenders only
  • Other Accessories
    Canon drop-in 52mm filters
    Canon Drop-In Circular Polarizing Filter 52 (WIII)
    Canon Lens Short Hood ET-155B

Specifications with 1.4x Extender

  • Focal Length
    560
  • Maximum Aperture
    4-25
  • Maximum Magnification
    0.25
  • AF Possible
    Yes
  • Image Stabilizer
    Yes

Specifications with 2x Extender

  • Focal Length
    800
  • Maximum Aperture
    5.6-64
  • Maximum Magnification
    0.36
  • AF Possible
    Yes
  • Image Stabilizer
    Yes

Physical Specifications

  • Dust/Moisture Resistance
    Yes
  • Exterior Coating
    Heat Shield
  • Filter Diameter (mm)
    52 Drop in
  • Max. Diameter x Length (mm)3
    163 x 367
  • Weight (g)
    2890

Although the lens features dust- and water-resistant construction, this cannot completely prevent dust or water droplets from entering the lens.

  1. Tested under CIPA standards. Lenses released after July 2024 tested under CIPA-2024 standard in the yaw/pitch (+ roll in case of IBIS) directions at maximum focal length, with a specific camera.
  2. Tested under CIPA standards. Lenses released after July 2024 tested under CIPA-2024 standard in the yaw/pitch (+ roll in case of IBIS) directions at maximum focal length, with a specific camera.
  3. Lens dimensions when in retracted state