Background trough window

Whats the proper way to put background outside not to affect lighting (sky and sun)?

I tried to put image in light material and apply material to plane outside, used light material because i want control of image trough lighmix and that is working good but it affect corona sky (makes image darker).

Thanks

Ray switcher comes to mind.

Thank you for your help, figured it out.
I came from vray so i need a little time to learn all :smiley: