Half press the shutter button, the camera auto focus; Press the shutter button all the way and move forward. The camera is locked for exposure. When the shutter button returns to its original position, the locked exposure ends.
Three uses of a shutter cord
Single shot mode (the camera is set to single shot first)
Follow steps 1&2;
In continuous shooting mode (the camera is set to continuous shooting), follow steps 1&2 and hold the shutter button. In gate B mode (the camera is set to Gate B), follow steps 1,2&3