Canon EF 75-300mm F4-5.6 III USM vs Canon RF 100-300mm F2.8 L IS USM

This is a full comparison between the lenses Canon EF 75-300mm F4-5.6 III USM and Canon RF 100-300mm F2.8 L IS USM.

Compare Specifications

Product
Canon EF 75-300mm F4-5.6 III USM
Canon RF 100-300mm F2.8 L IS USM
Name Canon EF 75-300mm F4-5.6 III USM Canon RF 100-300mm F2.8 L IS USM
Manufacturer Canon Canon
SKU
Release Date and Price
Canon EF 75-300mm F4-5.6 III USM
Canon RF 100-300mm F2.8 L IS USM
Release Year 1999 2023
Release Date 2023-04-20
MSRP 234 USD N/A
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Lens Type
Canon EF 75-300mm F4-5.6 III USM
Canon RF 100-300mm F2.8 L IS USM
Lens Type Telephoto Telephoto
Supertelephoto
Zoom or Prime Zoom lens Zoom lens
Mount and Compatibility
Canon EF 75-300mm F4-5.6 III 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 75-300mm F4-5.6 III 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 150 cm 180 cm
Maximum Magnification 0,16
Aperture
Canon EF 75-300mm F4-5.6 III USM
Canon RF 100-300mm F2.8 L IS USM
Maximum Aperture F4-5,6
This lens has a variable aperture at different focal lengths.
F4 at 75 mm
F5,6 at 300 mm
Variable Aperture
F2,8
Diaphragm Blades No information 9
Optics
Canon EF 75-300mm F4-5.6 III USM
Canon RF 100-300mm F2.8 L IS USM
Construction 13 elements  /  9 groups 23 elements  /  18 groups
Special Elements/Coatings No information One fluorite element, four UD elements, one aspherical element
Focal Length
Canon EF 75-300mm F4-5.6 III USM
Canon RF 100-300mm F2.8 L IS USM
Focal Length 75-300 mm 100-300 mm
Zoom Range 225 mm 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 75-300mm F4-5.6 III USM
Canon RF 100-300mm F2.8 L IS USM
Weather Sealing No Yes
Diameter 71 mm 128 mm
Length 122 mm 323 mm
Weight 480 gr 2650 gr
Other
Canon EF 75-300mm F4-5.6 III USM
Canon RF 100-300mm F2.8 L IS USM
Filter Type Filter Thread Filter Thread
Filter Diameter 58 mm 112 mm
Lens Hood Not Included Included
Lens Hood SKU ET-60 ET-124
Tripod Collar N/A Included
Tripod Collar SKU N/A N/A