Is Canon EOS R and Canon EF 300mm F2.8 L USM compatible?

Below you will find your chosen camera and lens. Click on the product name for more information.

Buy	Canon EOS R Released: 2018 Type: Mirrorless Sensor: Full frame 30 Megapixels 6720 x 4480 pixels
Buy	Canon EF 300mm F2.8 L USM Released: 1987 Telephoto Prime Lens Focal Length: 300 mm Aperture: f/2,8

Can you combine these two?

Last updated: December 2024

This is the short answer:

The camera and lens you have chosen can be used together if you use the desired adapter.

You must use an EOS R adapter

This Canon lens is not part of the Canon EOS R-system but it can still be used with Canon EOS R cameras. To use this lens on this camera you need an adapter.

Canon Lens Mount Adapter EF-EOS R

Focal Length

The Canon camera has a sensor of type Full frame which means that your experienced Focal length will be same as the lens specification tells us.

This lens has focal length:
300 mm

Since Canon EOS R has a Full Frame sensor this is also the focal length you will experience.

Total weight

When you are looking at a combination of a camera and a lens you must always consider the total weight. Each product weighs in at:

Canon EOS R
660 gram

Canon EF 300mm F2.8 L USM
2855 gram

Together they have a total weight of 3515 gram (equal to 7.75 lb).

Please note that Canon EF 300mm F2.8 L USM has a tripod mount which is great.

Read more about Tripod mount

Compatibility Check ID: 1500

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