RF 400mm F2.8L IS USM

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

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 Resistance3
Yes
Exterior Coating
Heat Shield
Filter Diameter (mm)
52 Drop in
Max. Diameter x Length (mm)4
163 x 367
Weight (g)
2890