brand . Feature: Remote shutter release cord is a useful accessory 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 and continuous shooting. Press the button halfway to activate autofocus and set the shutter speed. Press the button completely to take a photo. For long exposures (camera should be in Bulb Mode), press the button down completely and slide in the direction of the arrow to lock the button. Slide the button back to its original position when finished. Suitable for nightscape photography, product photography, advertising photography, stage photography, commercial photography, and other applications. Compatible with Nikon cameras: 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 shown in the picture are not included. Specifications: Item Type: Camera Shutter Release Cord Model Number: MC-30 Material: ABS Cable Length: approximately 1m / 39.3in Color: Black Quantity: 1 Piece Instructions: 1. Before using, insert the shutter plug into the cameras shutter socket and align the mark on the plug with the mark on the socket (if applicable). Then turn on the camera power. 2. Gently press the shutter release button halfway to activate the cameras autofocus and light metering system. 3. Fully press the shutter release button to release the shutter and take a photo. 4. To enable long exposure, fully press the shutter release button and push it forward to lock the shutter (camera must be set to Bulb mode). Note: 1cm = 10mm = 0.39inch Please allow 01cm measurement deviation due to manual measurement. Please confirm you are comfortable with this before purchasing. Due to differences in monitor displays, the image may not reflect the actual color of the item. Thank you. Package Includes: 1 x Camera Shutter Release Cord