Canon RF 400mm F2.8 L IS USM vs Canon EF 400mm F4 DO IS II USM

This is a full comparison between the lenses Canon RF 400mm F2.8 L IS USM and Canon EF 400mm F4 DO IS II USM.

Compare Specifications

Product
Canon RF 400mm F2.8 L IS USM
Canon EF 400mm F4 DO IS II USM
Name Canon RF 400mm F2.8 L IS USM Canon EF 400mm F4 DO IS II USM
Manufacturer Canon Canon
SKU
Release Date and Price
Canon RF 400mm F2.8 L IS USM
Canon EF 400mm F4 DO IS II USM
Release Year 2021 2014
Release Date 2021-04-14 2014-09-15
MSRP N/A N/A
Last known price 11999 USD 6899 USD
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Lens Type
Canon RF 400mm F2.8 L IS USM
Canon EF 400mm F4 DO IS II USM
Lens Type Telephoto
Supertelephoto
Zoom or Prime Prime lens (no zoom) Prime lens (no zoom)
Mount and Compatibility
Canon RF 400mm F2.8 L IS USM
Canon EF 400mm F4 DO IS II USM
Mount Canon RF Canon EF
Designed for APS-C sensor No (Suitable for all sensors) No (Suitable for all sensors)
Focus
Canon RF 400mm F2.8 L IS USM
Canon EF 400mm F4 DO IS II USM
Autofocus (AF) Yes Yes
Built-in Autofocus (AF) Motor Yes Yes
Motor Type Ring-Type Ultrasonic Ultrasonic
Focus Method No information No information
Closest Focusing Distance 250 cm 330 cm
Maximum Magnification 0,17 0,13
Aperture
Canon RF 400mm F2.8 L IS USM
Canon EF 400mm F4 DO IS II USM
Maximum Aperture F2,8 F4
Diaphragm Blades 9 9
Optics
Canon RF 400mm F2.8 L IS USM
Canon EF 400mm F4 DO IS II USM
Construction 17 elements  /  13 groups 18 elements  /  12 groups
Special Elements/Coatings 1 Super UD + 2 fluorite elements, Super Spectra + ASC coatings Anti-smear fluorine coating on front element, large-diameter aspheric element, UD element
Focal Length
Canon RF 400mm F2.8 L IS USM
Canon EF 400mm F4 DO IS II USM
Focal Length 400 mm 400 mm
Zoom Range None (Prime lens)
No Zoom available.
None (Prime lens)
No Zoom available.
Built-in Teleconverter No No
Teleconverter Multiplier N/A N/A
Image Stabilization Yes Yes
Image Stabilization CIPA Rating 5.5 stops 4 stops
Physical
Canon RF 400mm F2.8 L IS USM
Canon EF 400mm F4 DO IS II USM
Weather Sealing Yes Yes
Diameter 168 mm 128 mm
Length 367 mm 233 mm
Weight 2890 gr 2100 gr
Other
Canon RF 400mm F2.8 L IS USM
Canon EF 400mm F4 DO IS II USM
Filter Type Drop-in Filter Drop-in Filter
Filter Diameter 52 mm 52 mm
Lens Hood Included Included
Lens Hood SKU ET-155 ET-120
Tripod Collar Included Included
Tripod Collar SKU N/A N/A