Canon EF 400mm F2.8 L IS II USM vs Canon RF 100-400mm F5.6-8 IS USM

This is a full comparison between the lenses Canon EF 400mm F2.8 L IS II USM and Canon RF 100-400mm F5.6-8 IS USM.

Compare Specifications

Product
Canon EF 400mm F2.8 L IS II USM
Canon RF 100-400mm F5.6-8 IS USM
Name Canon EF 400mm F2.8 L IS II USM Canon RF 100-400mm F5.6-8 IS USM
Manufacturer Canon Canon
SKU
Release Date and Price
Canon EF 400mm F2.8 L IS II USM
Canon RF 100-400mm F5.6-8 IS USM
Release Year 2010 2021
Release Date 2021-09-14
MSRP N/A N/A
Last known price 0 USD 599 USD
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Lens Type
Canon EF 400mm F2.8 L IS II USM
Canon RF 100-400mm F5.6-8 IS USM
Lens Type Telephoto
Supertelephoto
Telephoto
Zoom or Prime Prime lens (no zoom) Zoom lens
Mount and Compatibility
Canon EF 400mm F2.8 L IS II USM
Canon RF 100-400mm F5.6-8 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 F2.8 L IS II USM
Canon RF 100-400mm F5.6-8 IS USM
Autofocus (AF) Yes Yes
Built-in Autofocus (AF) Motor Yes Yes
Motor Type No information Nano Ultrasonic
Focus Method No information No information
Closest Focusing Distance 270 cm 88 cm
Maximum Magnification 0,41
Aperture
Canon EF 400mm F2.8 L IS II USM
Canon RF 100-400mm F5.6-8 IS USM
Maximum Aperture F2,8 F5,6-8
This lens has a variable aperture at different focal lengths.
F5,6 at 100 mm
F8 at 400 mm
Variable Aperture
Diaphragm Blades No information 9
Optics
Canon EF 400mm F2.8 L IS II USM
Canon RF 100-400mm F5.6-8 IS USM
Construction 16 elements  /  12 groups 12 elements  /  9 groups
Special Elements/Coatings No information 1 UD + 1 aspherical element, Super Spectra Coating
Focal Length
Canon EF 400mm F2.8 L IS II USM
Canon RF 100-400mm F5.6-8 IS USM
Focal Length 400 mm 100-400 mm
Zoom Range None (Prime lens)
No Zoom available.
300 mm
Built-in Teleconverter No No
Teleconverter Multiplier N/A N/A
Image Stabilization Yes
IS
Yes
Image Stabilization CIPA Rating N/A 5.5 stops
Physical
Canon EF 400mm F2.8 L IS II USM
Canon RF 100-400mm F5.6-8 IS USM
Weather Sealing Yes No
Diameter 163 mm 80 mm
Length 343 mm 165 mm
Weight 3850 gr 635 gr
Other
Canon EF 400mm F2.8 L IS II USM
Canon RF 100-400mm F5.6-8 IS USM
Filter Type Drop-in Filter Filter Thread
Filter Diameter 52 mm 67 mm
Lens Hood Included Not Included
Lens Hood SKU ET-155 (WII) ET-74B
Tripod Collar Included N/A
Tripod Collar SKU N/A N/A