The SigmaCR-21 Cable Release is an alternative to the RS-31 Remote Controller offering a wired connection to the camera. This reduces the risk of camera shake, which can result in blurred images. Especially useful when using Mirror up and super-telephoto lenses.
![Sigma Cable Release for SD-14 #CR-21](https://d31wxntiwn0x96.cloudfront.net/fcjtay/productimages/4830.jpg?etag="c4cf880633a83d36b9a8c5854cfc94af" "Sigma Cable Release for SD-14 #CR-21")
