Assertion: camera's button | /r/HasProperty | pressed
Facets:
value: halfway
type: OTHER
value: halfway down
type: OTHER
value: several seconds
type: TEMPORAL
Source sentences:
text: Other drive modes commonly available include self timer, which takes a picture several seconds after the shutter button is pressed; automatic exposure bracketing, used to take multiple photos each with different exposure settings; and remote shutter mode for use with a remote control accessory to trigger the camera at a distance.
text: In most digital cameras, by default autofocus is only activated (AF-on) when the shutter button is pressed halfway down, which helps to preserve battery life.
text: Mechanical shutters typically had a Time setting, where the shutter opened when the button was pressed and remained open until it was pressed again, Bulb where the shutter remained open as long as the button was pressed (originally actuated by squeezing an actual rubber bulb), and Instantaneous exposure, with settings ranging from 30" to 1/4000" for the best leaf shutters, faster for focal-plane shutters, and more restricted for basic types.
text: Where the single shot focus measures the focus only once, continuous autofocus works the autofocus system constantly between the time the shutter button is pressed halfway
text: When the button is pressed the shutter opens and then closes.