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, Canon New F-1 / F-1 / AE-1 (FD mount), Lecia M10 M9 M8 M7 M6 M3 M2 M1 M-E M-P M9-P M-A M-Monochrom / M Type 240, Nikon Df M2 F3, Minolta XD7 / Minolta SR-7 / Rollei (LM mount) / Olympus OM-1 / Hasselblad 503CW. | Made of brass, concave surface 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. | Easy to use, just screws it into the threaded shutter release socket of your camera. Anti-slip rubber O-rings are included to ensure a tight attachment on Fujifilm X series cameras, while not for Sony RX1 & RX10 series cameras. | Decorates your camera, makes your camera look more stylish and elegant. Available in 10 colors: Red, Black, Silver Gray, Silver, Gold, Dark Red, Orange, White, Green, Yellow. | Also suitable for other cameras with a standard threaded shutter release socket which is designed by manufacturers to accept a mechanical shutter release cable.