Feature:Remote shutter release cord is a useful gear to prevent vibration when taking photos under long exposures, close-ups (macro) or continuous shooting.The shutter release button of this remote cord can be pressed halfway for auto-focus and exposure metering. A shutter release button lock is available for long exposures shooting and continuous shooting.Press the button half way to activate the autofocus and set the shutter speed.Press the button completely to shoot.For long exposures (camera should be in Bulb Mode), press the button down completely and slide in the direction of the for arrow/hold, which locks the pressed button, slide the button back to its original position when finished.Suitable for nightscape shooting, product shooting, advertising photography, stage shooting, commercial photography and other occasions.It is suitable for nikon camera D100 D200 D300 D300S D700 D800 D800E D810 D4 D3 D4S D3X D3S D1H D1X D2H D2XS F5 F6 F90 F90X F100.Camera Shutter Release Cord only, other accessories demo in the picture is not included Specifications:Item Type: Camera Shutter Release CordModel Number: MC-30Material: ABSSize: Cable Length: app.1m/39.3inColor: BlackQuantity: 1 PcInstructions:1.Before using, insert the shutter plug into the shutter socket of the camera, and align the sign on the plug with the sign on the socket (if any), then turn on the power supply of the camera.2.Push the shutter release button gently and half to start the camera auto-focusing/measuring light source system.3.Press the shutter release button safely and release the camera shutter for photography.4.Press the shutter release button safely and push forward, lock the camera shutter for long exposure (the camera needs to be set in Bulb). Note:Transition: 1cm=10mm=0.39inchPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes:1 x Camera Shutter Release Cord