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

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

Compare Specifications

Product
Canon EF 400mm F4 DO IS II USM
Canon RF 400mm F2.8 L IS USM
Name Canon EF 400mm F4 DO IS II USM Canon RF 400mm F2.8 L IS USM
Manufacturer Canon Canon
SKU
Release Date and Price
Canon EF 400mm F4 DO IS II USM
Canon RF 400mm F2.8 L IS USM
Release Year 2014 2021
Release Date 2014-09-15 2021-04-14
MSRP N/A N/A
Last known price 6899 USD 11999 USD
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Lens Type
Canon EF 400mm F4 DO IS II USM
Canon RF 400mm F2.8 L IS USM
Lens Type Telephoto
Supertelephoto
Zoom or Prime Prime lens (no zoom) Prime lens (no zoom)
Mount and Compatibility
Canon EF 400mm F4 DO IS II USM
Canon RF 400mm F2.8 L IS USM
Mount Canon EF Canon RF
Designed for APS-C sensor No (Suitable for all sensors) No (Suitable for all sensors)
Focus
Canon EF 400mm F4 DO IS II USM
Canon RF 400mm F2.8 L IS USM
Autofocus (AF) Yes Yes
Built-in Autofocus (AF) Motor Yes Yes
Motor Type Ultrasonic Ring-Type Ultrasonic
Focus Method No information No information
Closest Focusing Distance 330 cm 250 cm
Maximum Magnification 0,13 0,17
Aperture
Canon EF 400mm F4 DO IS II USM
Canon RF 400mm F2.8 L IS USM
Maximum Aperture F4 F2,8
Diaphragm Blades 9 9
Optics
Canon EF 400mm F4 DO IS II USM
Canon RF 400mm F2.8 L IS USM
Construction 18 elements  /  12 groups 17 elements  /  13 groups
Special Elements/Coatings Anti-smear fluorine coating on front element, large-diameter aspheric element, UD element 1 Super UD + 2 fluorite elements, Super Spectra + ASC coatings
Focal Length
Canon EF 400mm F4 DO IS II USM
Canon RF 400mm F2.8 L IS 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 4 stops 5.5 stops
Physical
Canon EF 400mm F4 DO IS II USM
Canon RF 400mm F2.8 L IS USM
Weather Sealing Yes Yes
Diameter 128 mm 168 mm
Length 233 mm 367 mm
Weight 2100 gr 2890 gr
Other
Canon EF 400mm F4 DO IS II USM
Canon RF 400mm F2.8 L IS USM
Filter Type Drop-in Filter Drop-in Filter
Filter Diameter 52 mm 52 mm
Lens Hood Included Included
Lens Hood SKU ET-120 ET-155
Tripod Collar Included Included
Tripod Collar SKU N/A N/A