The P+S Technik Skater Scope can be used as a straight borescope or with a bend as a periscope.  The system allows for a 360 degree image rotation via an image rotation gear ring, which can accept external motors for precise control.  This feature is also used to level the horizon or create a dutch angle without altering the position of the camera.

Featured here with our TLS rehoused Kowa Sperhical 40mm Prime.  Most lenses will clear but please check ahead of time before mounting.