This FTML-L3 remote acts as a wireless shutter release capable of instantly triggering the shutter without disturbing the camera, up to a distance of approximately 16 feet (4.87 m) in front of the camera. It is recommended for taking pictures of subjects that are difficult to approach, or to minimize vibration for close-ups and time exposure. The FTML-L3 supports the bulb exposure camera setting making it a worthwhile accessory for shooting long time exposures for low-light photography or unusual daylight effects.