Canon RF 400mm F2.8L IS USM Super telephoto Lens for Mirrorless Cameras

CanonSKU: 4549292184440

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Canon Promotion - Lens Reward & Student Cashback

Promotional Graphic for the 2 Canon Offers - Lens Reward & Student Cashback

Canon Lens Reward Promotion & Student Cashback

Buy any of the eligible Canon EOS R System cameras to qualify for cashback on a huge selection of Canon RF Lenses. Please visit http://www.canon.co.uk/lens-reward for more information on this promotion. Offer valid from the 1st September 2023 until the 31st August 2024. Students can also claim cashback on selected Canon cameras, lenses and printers with our Student Cashback offer. This offer is valid from the 1st September 2023 until the 31st May 2024.

Product Description

Canon RF 400mm F2.8L IS USM Super telephoto Lens for Mirrorless Cameras

  • Exceptional sharpness across the frame even wide open at f/2.8
  • The dual power focus drive provides faster AF with compatible cameras
  • Up to 5 stops of image stabilisation
  • Fluorite and Super UD glass plus ASC and Super Spectra coatings
  • L-series high build quality with weather sealing and heat-reflecting white finish
  • Compatible with RF 1.4x and RF 2x Extender

The arrival of the Canon RF 400mm f/2.8L IS USM Lens marks a new era of professional native super telephoto lenses for the full frame Canon mirrorless system. A combination of Fluorite and Super UD glass elements with ASC and Super Spectra coatings result in superb image quality, which will satisfy professional and enthusiast wildlife, sports and action photographers. The lens focuses quickly, quietly and confidently, even with faster moving subjects as it is assisted by a Dual Power Focus Drive, which draws extra power from any compatible camera body.

Photographers working in low light benefit from a large, bright f/2.8 aperture together with image stabilisation (IS) for up to 5 stops of compensation. Hand holding is more comfortable with the RF 400mm f/2.8L IS USM lens as it weighs just 2890g, which is the lightest professional 400mm lens available for any mirrorless system at the time of launch.

Canon has thought about versatility of the RF 400mm f/2.8L with full-time MF letting you adjust focus as well as AF start/stop buttons which are intuitively placed on the lens barrel. Even the 2.5m close focus distance provides greater flexibility for subjects nearing the photographer.

Advanced AF Capability Advanced AF keeps any erratic and fast-moving subjects pin sharp, assisted by a dual power focus drive which delivers faster AF with compatible cameras. Full time MF is also on hand to fine tune focus without the need for toggling an AF switch.

Exceptional image quality Canon has integrated Fluorite and Super UD glass elements into the optical design with ASC and Super Spectra coatings resulting in clear, sharp images right across the frame, even when shooting into lights.

Low light performance The RF 400mm lens is extremely competent in low light with a large f/2.8 aperture and an image stabilisation system with 5 stops of shake compensation. Add in the fact this is the lightest pro 400mm super telephoto prime for full frame mirrorless systems and users can achieve excellent results even when hand holding as light dips.

Durable build quality This is a lens to use whatever the weather in any situation indoors or out, as it has been designed with legendary L-series build quality and signature heat-reflecting white finish.

Dual Power Focus Drive The RF 400mm f/2.8L mount features a second power connection referred to as a dual power focus drive system, allowing the lens to draw more current from compatible camera bodies. This extra power is used to increase the USM speed for faster focusing, letting photographers obtain initial focus more quickly and track moving objects effortlessly.

Read more about this and the RF 600mm professional primes in our blog Canon Pro RF Super Telephoto Lenses

WHAT’S IN THE BOX

  • RF 400mm f/2.8L IS USM Lens
  • Lens Cap E-180E
  • Lens hood ET-155(WIII)
  • Lens Soft case LS400
  • Lens Dust Cap RF
  • Compatible with RF 1

For full specifications click Here

    Optical Features / Specifications Image Size
    Image Size Full frame
    Angle of View (Horzntl, Vertl, Diagnl) 190°, 190°, 190°
    Lens Construction (Elements/Groups) 12/10
    Special Optics 2 x UD
    Special Features Dual Fisheye with Baseline length of 60mm
    Number of Diaphragm Blades 7
    Minimum Aperture 16
    Closest Focusing Distance (m) 0.2
    Maximum Magnification (x) 0.03
    Control Ring No
    Coatings Super Spectra, SWC
    Fluorine Front
    Accessories  
    Lens Cap Lens Cap 5.2 (center pinch type)
    Lens Case/Pouch LS1014
    Rear End Cap Lens Dust Cap RF
    Extender Compatibility Not Compatible
    Other Accessories Hexagon wrench
    Physical Specifications  
    Dust/Moisture Resistance Rubber ring on lens mount 1
    Filter Diameter (mm) Rear-mounted gelatin filter (35x20mm)
    Max. Diameter x Length (mm)2 (121.1 x 83.6) x 53.53
    Weight (g) 350
    1 Lenses with dust/moisture resistance are fitted with a rubber ring on the lens mount which may cause slight abrasion of the camera mount. This in no way effects either the lens or camera performance.
    2 Lens dimensions when in retracted state
    3 Lens dimensions when in retracted state.

     

    Understanding: Aperture

    Aperture is the opening in a camera lens that controls how much light enters the camera. It's measured in f-stops like f/2.8 or f/8. Lower f-stop numbers mean wider openings, letting in more light and creating a shallow depth of field (blurry background). Higher f-stop numbers mean smaller openings, letting in less light and creating a larger depth of field (more of the scene in focus). Aperture also affects the quality of out-of-focus areas in the image (bokeh).

    Understanding: Lens Types

    Different lenses have different purposes to achieve different styles of images, some popular ones include:
    Prime Lens: Fixed focal length, sharp images, great for portraits and dark settings.
    Zoom Lens: Variable focal length, versatile for different shots and everyday use..
    Wide-Angle Lens: Captures wide scenes like landscapes.
    Telephoto Lens: Magnifies distant subjects, ideal for sports & wildlife.
    Macro Lens: Perfect for close-up photography of small subjects.
    Fisheye Lens: Ultra-wide perspective, creates unique images.

    Understanding: Lens Mounts

    Different camera brands use different lens mounts, which are like connectors that attach lenses to camera bodies. Each mount is specific to a particular brand and camera series. For example, Canon uses the EF and RF mounts, Nikon uses the F mount, Sony uses the E mount for its mirrorless cameras. These mounts dictate which lenses are compatible with which cameras. Some brands offer adapters to use lenses from other systems, but it's essential to ensure compatibility for proper functionality and autofocus performance.

    Understanding: Manual and Autofocus

    Manual focus and autofocus are two ways to adjust the sharpness of a camera lens. With manual focus, you turn a ring on the lens to bring the subject into focus yourself, giving you full control over what appears sharp in the image. Autofocus, on the other hand, relies on the camera's built-in technology to automatically adjust the focus for you, usually by detecting contrast or phase differences in the scene. Autofocus can be convenient, especially for fast-moving subjects or when you need to capture a quick shot, whereas manual focus allows for precise adjustments and creative control over the final image.

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