This allows you to add an iris rod quick and easy. This Iris rod clamp inserts into the Arri dovetails. It works in combination with the Hill square to round rods. The clamp has two slots in the top of it for the rods to run horizontal or vertical (Depending on the camera). This will work on the following Arriflex camera’s 535, 435, 35-3, SR-3, and any other cameras that have been modified with the Arri dovetail. The AIRC can be purchased alone by itself for those who own the rods already, and also with a rod as a kit. Comes as you see in the picture to the left.