Assertion: aperture | /r/HasProperty | the key
Facets:
value: to the portrait look
type: TRANSITIVE-OBJECT
Source sentences:
text: Aperture is the key to the portrait look.
text: Aperture is one of the 3 key elements that work together to create an exposure and before you can expect to start getting the most out of your camera you must first gain an understanding for the basics of exposure and really have a good grasp on aperture.