The Sigma CR-21 Cable Release Switch is a wired remote for the Sigma SD1, SD14, SD15 and SD1 Merrill Digital cameras. Use of this cable release reduces the risk of camera-shake, which can result in blurred images, and is especially useful when using the camera with the Mirror up and when using super-telephoto lenses. Ideal for long exposures or bulb shooting. It is also possible to lock the release button.
The CR-21 Cable Release is an alternative to the RS-31 remote controller offering a wired connection to the camera.
- Sigma CR-21 Cable Release Switch for Sigma SD14, SD15 and SD1 Merrill Digital Camera
- User Guide