Freewell Adjustable Universal 15mm Rail Mount Support Compatible with Eiger Matte Box

Function：The rail lens mount supports and stabilizes the lens against sagging and vibration caused by its weight. It is commonly used with camera rigs or support poles. Convertible Support: This mount can be used directly in an Eiger matte box and also features a Y-shaped pulley for lens support; no limitation of zoom/focus in a constant position. Adjustable: Rotate the shaped nut to adjust the vertical height of the stand, suitable for various outer diameters.