Canon EF 100-400mm F4.5-5.6L IS II USM vs Canon RF 400mm F2.8 L IS USM

This is a full comparison between the lenses Canon EF 100-400mm F4.5-5.6L IS II USM and Canon RF 400mm F2.8 L IS USM.

Compare Specifications

Product
Canon EF 100-400mm F4.5-5.6L IS II USM
Canon RF 400mm F2.8 L IS USM
Name Canon EF 100-400mm F4.5-5.6L IS II USM Canon RF 400mm F2.8 L IS USM
Manufacturer Canon Canon
SKU
Release Date and Price
Canon EF 100-400mm F4.5-5.6L IS II USM
Canon RF 400mm F2.8 L IS USM
Release Year 2014 2021
Release Date 2014-11-11 2021-04-14
MSRP N/A N/A
Last known price 1489 USD 11999 USD
Buy it today
Lens Type
Canon EF 100-400mm F4.5-5.6L IS II USM
Canon RF 400mm F2.8 L IS USM
Lens Type Telephoto Telephoto
Supertelephoto
Zoom or Prime Zoom lens Prime lens (no zoom)
Mount and Compatibility
Canon EF 100-400mm F4.5-5.6L 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 100-400mm F4.5-5.6L 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 98 cm 250 cm
Maximum Magnification 0,31 0,17
Aperture
Canon EF 100-400mm F4.5-5.6L IS II USM
Canon RF 400mm F2.8 L IS USM
Maximum Aperture F4,5-5,6
This lens has a variable aperture at different focal lengths.
F4,5 at 100 mm
F5,6 at 400 mm
Variable Aperture
F2,8
Diaphragm Blades 9 9
Optics
Canon EF 100-400mm F4.5-5.6L IS II USM
Canon RF 400mm F2.8 L IS USM
Construction 21 elements  /  16 groups 17 elements  /  13 groups
Special Elements/Coatings Air Sphere, fluorine coatings; Super ED element 1 Super UD + 2 fluorite elements, Super Spectra + ASC coatings
Focal Length
Canon EF 100-400mm F4.5-5.6L IS II USM
Canon RF 400mm F2.8 L IS USM
Focal Length 100-400 mm 400 mm
Zoom Range 300 mm 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 100-400mm F4.5-5.6L IS II USM
Canon RF 400mm F2.8 L IS USM
Weather Sealing Yes Yes
Diameter 94 mm 168 mm
Length 193 mm 367 mm
Weight 1570 gr 2890 gr
Other
Canon EF 100-400mm F4.5-5.6L IS II USM
Canon RF 400mm F2.8 L IS USM
Filter Type Filter Thread Drop-in Filter
Filter Diameter 77 mm 52 mm
Lens Hood Included Included
Lens Hood SKU ET-38D ET-155
Tripod Collar Included Included
Tripod Collar SKU N/A N/A