Option 1 : 40cm<br>Option 2 : 100cm<br><br>This shutter is specifically design for the camera while making applies to most of the camera, accessory for the dedicated photo camera system <br>Standard sized thread connector<br>Use this device to reduce camera shake when shooting with a tripod, make sure your camera is perfectly stable and immobile <br>One hand operation leaving your other hand free <br>Shutter may be locked or opened for extended periods<br><br><img src="http://gdetail.image-gmkt.com/981/523/660523981/2016/9/196e6761-6311-4f92-866d-bd63184184e5.jpg" undefined=""><br><img src="http://gdetail.image-gmkt.com/981/523/660523981/2016/9/4a40147c-f97d-42d0-80a6-b2c3f4a3c29f.jpg" undefined=""><br><img src="http://gdetail.image-gmkt.com/981/523/660523981/2016/9/ba900714-6da6-43a7-8106-0e1dedc22992.jpg" undefined=""><br><br>