Is Nikon D300s and Canon EF 600mm f/4 L IS II USM compatible?

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

Nikon D300s
Release date: 2009
Sensor of type DX / APS-C (1.5x)
12,3 Megapixels (4288 x 2848 pixels)

Canon EF 600mm f/4 L IS II USM
Release date: 2011
Lens type: Telephoto
Focal Length on 600 mm and aperture f/4

Can you combine this camera and lens?

No, the products cannot be combined. Here are a few reasons.