<br><b>Foto&Tech</b>’s soft release buttons are made of solid brass with a concave surface. This allows an easy, manual press at the top of your camera. It comes with 3 pieces of soft metal shutter release button.</br><br> </br><br>To install, simply attach the soft release button onto the threaded shutter release socket of your camera. After locking it in, enjoy clicking away with our soft easy shutter release buttons. </br><br> </br><br>Besides the shutter release buttons, it comes with rubber O-rings to fit other cameras, specifically compatible with Fujifilm X series camera. For other brands that do not need the rubber O-ring, you can add a small piece of Teflon Thread seal tape (not included) on the button screw. It will keep the shutter button to stay still on the camera.</br><br> </br><br><b>Note: It also fits other cameras with a standard threaded shutter release socket which is designed by the camera manufacturers to accept a mechanical shutter release cable. </b></br><br> </br><br>Compatible with Fujifilm X-T3 / X-T2 / X-T20 / X-T10 / X-PRO2 / X-PRO1 / X100F / X100T / X100S / X100 / X30 / X20 / X10 / X-E3 / X-E2S / X-E2 / X-E1 / STX-2. </br><br>Compatible with Leica M10 / M9 / M8 / M7 / M6 / M3 / M2 / M1 / M-E / M-P / M9-P / M-A / M-Monochrom / M Type 240. </br><br>Compatible with Canon New F-1 / F-1 / AE-1 (FD mount). Nikon: Df / M2 / F3. Sony: DSC-RX1R II / DSC-RX10 IV / DSC-RX10 III / DSC-RX10 II / DSC-RX10. </br><br>Compatible with Minolta XD7 / Minolta SR-7 / Rollei (LM mount) / Olympus OM-1 / Hasselblad 503CW.  </br><br> </br><br><b>Specifications</b></br><br><i>Concave surface diameter:</i> 11mm</br><br><i>Thread size:</i> ¼ in</br><br><i>Available Colors:</i> Comes in Red, Black, Silver, Dark Red, Orange.</br><br><i>Package includes: </i>3 x Concave Surface Shutter Release Button, 3 x Rubber O-Rings</br>