PROMASTER offers a complete line of Remote Release Cables to cover almost every popular DSLR and film SLR. The innovate modular design allows the maximum flexibility in workings distances. Many cameras offer built-in infrared remote capability but limit the use of your remote to standing in front of the camera. A wired remote allows more freedom to work from any position. The PROMASTER SystemPRO Profession Remote Shutter Release Cable is fully compatible with all shutter release functions including prefocus and timed exposure.