Is Nikon D810 and Canon EF-S 18-200mm f/3,5-5,6 IS compatible?

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

Buy	Nikon D810 Released: 2014 Type: Digital SLR Sensor: FX (Full frame) 36 Megapixels 7360 x 4912 pixels
Buy	Canon EF-S 18-200mm f/3,5-5,6 IS Released: 2008 Superzoom Suited for cameras with APS-C sensors Focal Length: 18-200 mm Aperture: f/3,5-5,6

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:

A non-Nikon lens on a Nikon camera

This is a Canon lens and unfortunately they are not constructed to work with Nikon cameras. If the lens would have been a Sigma, Tamron och Tokina it would perhaps be different since they are available with a compatible Nikon mount.

APS-C sensor is needed

The camera does not have a APS-C sensor which is needed for this lens.