Canon EF 300mm F2.8 L USM vs Canon RF 100-300mm F2.8 L IS USM

This is a full comparison between the lenses Canon EF 300mm F2.8 L USM and Canon RF 100-300mm F2.8 L IS USM.

Compare Specifications

Product
Canon EF 300mm F2.8 L USM
Canon RF 100-300mm F2.8 L IS USM
Name Canon EF 300mm F2.8 L USM Canon RF 100-300mm F2.8 L IS USM
Manufacturer Canon Canon
SKU
Release Date and Price
Canon EF 300mm F2.8 L USM
Canon RF 100-300mm F2.8 L IS USM
Release Year 1987 2023
Release Date 2023-04-20
MSRP N/A N/A
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Lens Type
Canon EF 300mm F2.8 L USM
Canon RF 100-300mm F2.8 L IS USM
Lens Type Telephoto Telephoto
Supertelephoto
Zoom or Prime Prime lens (no zoom) Zoom lens
Mount and Compatibility
Canon EF 300mm F2.8 L USM
Canon RF 100-300mm 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 300mm F2.8 L USM
Canon RF 100-300mm F2.8 L 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 300 cm 180 cm
Maximum Magnification 0,16
Aperture
Canon EF 300mm F2.8 L USM
Canon RF 100-300mm F2.8 L IS USM
Maximum Aperture F2,8 F2,8
Diaphragm Blades No information 9
Optics
Canon EF 300mm F2.8 L USM
Canon RF 100-300mm F2.8 L IS USM
Construction 10 elements  /  8 groups 23 elements  /  18 groups
Special Elements/Coatings No information One fluorite element, four UD elements, one aspherical element
Focal Length
Canon EF 300mm F2.8 L USM
Canon RF 100-300mm F2.8 L IS USM
Focal Length 300 mm 100-300 mm
Zoom Range None (Prime lens)
No Zoom available.
200 mm
Built-in Teleconverter No No
Teleconverter Multiplier N/A N/A
Image Stabilization No Yes
Image Stabilization CIPA Rating N/A 5 stops
Physical
Canon EF 300mm F2.8 L USM
Canon RF 100-300mm F2.8 L IS USM
Weather Sealing No Yes
Diameter 125 mm 128 mm
Length 253 mm 323 mm
Weight 2855 gr 2650 gr
Other
Canon EF 300mm F2.8 L USM
Canon RF 100-300mm F2.8 L IS USM
Filter Type Drop-in Filter Filter Thread
Filter Diameter 48 mm 112 mm
Lens Hood Included Included
Lens Hood SKU N/A ET-124
Tripod Collar Included Included
Tripod Collar SKU N/A N/A