The Zeikos ZE-WSRN Wireless Remote Shutter Release is meant to be used with Nikon, (and some Fuji Finepix) cameras. It operates at ranges up to 490-656 feet, depending upon conditions. It operates in the single/continuous/delay shooting and bulb modes. This is great for when you can't be near the camera, want to be in the picture, or simply want to avoid camera shake.