Canon announces 400mm F2.8L and 600mm F4L RF-mount lenses
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Canon announces 400mm F2.8L and 600mm F4L RF-mount lenses

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Canon has announced two new telephoto prime lenses for the RF mount. The RF 400mm F2.8L IS USM and 600mm F4L IS USM have the same optical makeup as their EF-mount equivalents, with 17 elements in 13 groups, including one Super UD and two fluorite special elements, along with Super Spectra and Air Sphere coatings. Canon claims that the optical I.S. systems reduce camera shake by up to 5.5 stops regardless of which RF-mount body you’re using.

The minimum focus distance on the 400mm F2.8 is 2.5m (8.2 ft) and 4.2m (13.8 ft) on the 600mm F4. The maximum magnifications are 0.17x and 0.15x, respectively. Both support Canon’s RF 1.4x and 2x teleconverters.

As with all L-series lenses, the 400 and 600 are rugged and weather-sealed, and have a fluorine coating on the front element to repel oil and water.

The RF 400mm F2.8L and 600mm F4L will be available in July priced at $12,000 and $13,000, respectively.

Press release:

The Canon RF400mm F2.8L IS USM and Canon RF600mm F4L IS USM are both designed to be optically identical to their EF counterparts. The RF400mm and RF600mm weigh in at 6.37 and 6.81 pounds with a minimum focusing distance of 8.2 and 13.8 feet, respectively. Both lenses share many of the same critical features that help professional high-end super-telephoto lenses stand out from the crowd.Those features include:

  • Ideal for a wide variety of shooting situations, including sports, aviation, trains, automotive, and wildlife, such as birding.
  • Optical Image Stabilization with up to 5.5 stops[6] of shake correction. Including three IS Operation Modes — still subjects, panning, and irregular movement.
  • Proprietary Canon lens coatings, Super Spectra Coating (SSC), and Air Sphere Coating (ASC) help minimize ghosting and flaring. Lens placement and coatings are optimized to provide users with clear, high-contrast images even when there is a bright light source.
  • Lenses include fluorite and super UD lens elements arranged in such a way to help correct chromatic aberration and make the models more compact. Like the latest Canon EF400mm f/2.8L IS III USM and EF600mm f/4L IS III USM lenses, released in the fall of 2018, weight on these RF-series super-telephotos has been significantly reduced vs. previous-generation Canon super tele designs.
  • Compatible with Canon RF 1.4x and 2x extenders, and feature a customizable electronic focus ring, with manual focus capability during SERVO AF.
  • A nine-blade circular aperture provides users beautiful bokeh and ideally blurred backgrounds when the aperture is stopped down.
  • For added convenience when on a shoot, two focus presets are available. Users can instantly return to one of two memorized focus distances.
  • Rugged Canon L-series dust and water-resistant design with vibration and shock resistance. The front element has been dressed with a fluorine coating for easy cleaning.
  • Infrared reflective pigments with high reflectance and titanium oxide lens barrel coating with silica provide excellent UV weather resistance and heat reduction.

Canon RF Lenses Pricing and Availability

The Canon RF100mm F2.8 L Macro IS USM, Canon RF400mm F2.8 L IS USM and Canon RF600mm F4L IS USM are scheduled to be available in July 2021 for an estimated retail price of $1,399.00, $11,999.00 and $12,999.00, respectively*. For more information, please visit usa.canon.com.

[6] Based on CIPA (Camera & Imaging Products Association) standards. Testing performed using the EOS R camera.

Canon RF 400mm F2.8L IS USM Canon RF 600mm F4L IS USM
Principal specifications
Lens type Prime lens
Max Format size 35mm FF
Focal length 400 mm 600 mm
Image stabilization Yes
CIPA Image stabilization rating 5.5 stop(s)
Lens mount Canon RF
Aperture
Maximum aperture F2.8 F4
Minimum aperture F32
Aperture ring No
Number of diaphragm blades 9
Optics
Elements 17
Groups 13
Special elements / coatings 1 Super UD + 2 fluorite elements, Super Spectra + ASC coatings
Focus
Minimum focus 2.50 m (98.43) 4.20 m (165.35)
Maximum magnification 0.17× 0.15×
Autofocus Yes
Motor type Ring-type ultrasonic
Full time manual Yes
Focus method Internal
Distance scale No
DoF scale No
Focus distance limiter Yes
Physical
Weight 2890 g (6.37 lb) 3090 g (6.81 lb)
Diameter 168 mm (6.61)
Length 367 mm (14.45) 472 mm (18.58)
Materials Magnesium alloy
Sealing Yes
Colour White
Filter thread 52 mm
Filter notes Rear drop-in filters only
Hood supplied Yes
Tripod collar Yes

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