Attaches to the top of the ALEXA, ALEXA Plus, ALEXA Plus 4:3, ALEXA M body, ALEXA Studio, ALEXA XT, ALEXA XT M body, ALEXA XT Plus, ALEXA XT Studio, ALEXA SXT EV, ALEXA SXT Plus, ALEXA SXT Studio, ALEXA SXT W or ALEXA LF camera and provides numerous 3/8 inch-16 UNC threaded mount.