Lightdow LD0104A Matte Box with Rigid Sunshade Support 15mm Rail Rod On Follow Focus Rig System Material: Aluminum Alloy + PC + ABS Compatibility: All (D)SLR cameras and camcorders Backed with LIGHTDOW 90-Day Hassle Free Return & Replacement Warranty for Quality-Related Issue. International standard, it fits the 15mm / 0.6in stabilizer system (rail center to center distance: 60mm / 2.4in) It is suitable for lens from 43mm to 77mm / 1.7 - 3.0in.