Features: Replacement for Canon 7D/ 7DII/ 6D/ 6D Mark II/ 50D/ 5D II/ 5D III/ 5D/ 5D4/ 5DS/ 40D/ 30D/ 20D/ 10D/ 1D/ 1DS/ 1DX/ 1DX II/ 1Ds Mark II/ 1Ds Mark III/ 1Ds Mark IV/ EOX-1V/ EOS-3. Half press the button can activate camera automatically focusing, completely press down the button to start shooting. Just press down the button and slide forward to lock, to achieve camera long exposure or continuous shooting. Mini size and lightweight, specially designed back groove can improve grip feeling, not easily slip from hand. Plug and use, with the shutter release cable to avoid blur and long time working stress, works can be more productive. Specifications: Color: Black : YouPro Model: N3 Replacement for: Canon camera(Models listed as below) Canon 7D/ 7DII/ 6D/ 6D Mark II/ 50D/ 5D II/ 5D III/ 5D/ 5D4/ 5DS/ 40D/ 30D/ 20D/ 10D/ 1D/ 1DS/ 1DX/ 1DX II/ 1Ds Mark II/ 1Ds Mark III/ 1Ds Mark IV/ EOX-1V/ EOS-3 Dimension: 9.4 * 3 * 1.5cm / 3.7 * 1.18 * 0.59in Cable Length: 120cm / 47.24in/ 3.9ft Package Size: 12 * 6 * 2.8cm / 4.72 * 2.36 * 1.10in Package Weight: 53g / 1.87oz Packing List: 1 * Shutter Release Cable