To be able to see Redshift objects and Tags in your Cinema 4D Layout and menus, be sure to have Redshift activated as your Renderer in the Render Settings!
The camera Projection can be switched directly from within the Object settings of a Redshift camera object.
The Projection can be switched directly from the Object settings of a Redshift camera.
Rendering an older Redshift project that still uses a Cinema 4D Camera object / Redshift Camera Tag combination, some settings are found at the camera object (such as Focus Distance and Film Offset) and some are found in the Tag (such as switching the Camera Type).