... one of the optional cables depending on the model of camera to be controlled. When used wireless, the transmitter and ... many shooting situationseasy to carry and use Two-mode release button: halfway for auto- focus, complete pressing for shooting Ranges up ... Low power needed and lasted for longCompatible withSony Alpha SLR Camera: A900, A850,A700, A550, A500, A380, A350, A200, A100Minolta Maxxum ...