Satechi MA-H 36 inch High Quality Remote Shutter Product Details
Two-step button switch with lock function. Halfway pressing for autofocus, complete pressing takes the picture. Lock the button for long exposures or continuous shooting. 100%compatible with Sigma CR-11
^^ Fully compatible with Sigma CR-11
^^ The release button reacts fast and fine.
^^ Weight: only 1.05 ounce
^^ Cord length: approx. 36''
^^ Operating temperature: 0 °C to 40 °C (31 °F to 105 °F) .