JYC Remote Switch SR-C3/1M for Canon High End SLR: OS1V, EOS3, EOS1D, 1DS, 1DSMK_, 1DSMK_, EOSD30, EOS 10D, 20D, 30D, 40D, 50D, 5D, 5D_, 7D, EOSD60, 5D Mark III 1. Minimize Vibration as you are shooting. 2. Handy for taking pictures of subjects that are difficult to approach. 3. Easily control the shutter for Long time exposures. 4. Cable length: 0.9 m (3ft) 5. Cheaper but the same function compared with expensive Canon remote cord. 6. Mini size, light weight 7. Elegant design, excellent quality