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.

The Sigma CR-21 Cable Release Switch is compatible with Sigma BP-21 Lithium-ion Battery for SD1, SD14, SD15, and SD1 Merrill cameras.

Compatibility

Sigma CR-21 Cable Release