COMPATIBILITY. Compatible with Fujifilm X-T20 X-T10 X-T3 X-T2 X-PRO2 X-PRO1 X100F X100T, X100S, X100, X30, X20, X10, X-E2S, X-E3, X-E2 X-E1 STX-2; Compatible with Canon New F-1 / F-1 / AE-1 (FD mount), Compatible with Leica M10, M9, M8, M7, M6, M3, M2, M1, M-E M-P, M9-P, M-A, M-Monochrom / M Type 240; Compatible with Nikon Df, M2, F3; Compatible with Minolta XD7 / Minolta SR-7 / Rollei (LM mount) / Olympus OM-1 / Hasselblad 503CW. | UNIVERSAL. Our soft shutter release buttons are compatible with cameras that have the standard threaded shutter release socket. The buttons are also great with cameras that connect with mechanical shutter release cables. | SMART DESIGNS. This concave-shaped, brass, soft shutter release button adds comfort and the ability to use slower shutter speeds with improved sharpness. Concave surface diameter: 11mm. Thread size: ¼ in. Note: Gold also comes with a grooved edge for easier grip. | EASY TO INSTALL. Simply screw it onto the threaded shutter release socket of your camera. The package also includes anti-slip rubber O-rings to ensure a tight fit on Fujifilm X series cameras, but not compatible with Sony RX1 & RX10 series cameras. | STYLISH & PERSONAL. Give your camera a touch of your personal style. These shutter buttons are available in these colors: Red, Black, Gray, Silver, Gold (available in smooth or ridged), Dark Red, Orange, White, Green, Yellow, and Wooden Brown.