Is Canon EOS R7 and Sigma 50-200mm f/4-5,6 DC OS HSM compatible?

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

Buy	Canon EOS R7 Released: 2022 Type: Mirrorless Sensor: APS-C (1.6x) 33 Megapixels 6960 x 4640 pixels
Buy	Sigma 50-200mm f/4-5,6 DC OS HSM Released: 2009 Telephoto Lens (zoom) Suited for cameras with APS-C sensors Focal Length: 50-200 mm Aperture: f/4-5,6

Can you combine these two?

This is the short answer:

No! This combination is not compatible

The camera and lens you have chosen cannot be combined. Here is a longer answer:

Not a lens for the Canon EOS R-system

This Canon EOR R camera and this Sigma lens is not compatible. For this camera, you can only use lenses that are constructed to work with the Canon EOS R-system. If you are using the Canon Lens Mount Adapter EF-EOS R you can also use other and older Canon EF, EF-S, MP-E and TS-E lenses.