Assertion: camera's length | /r/HasProperty | measured
Facets:
value: from the rear nodal point
type: OTHER
Source sentences:
text: The length of time the light takes to bounce back is measured and that translates to distance information that can be used to create a depth map.
text: Instead, focal length is measured from the rear nodal point—which, along with the focal point, is one of the cardinal points in Gaussian optics—to the focal point while the lens is focused at infinity.
text: You really don’t need a very deep understanding of how focal length is measured to take good photos; you just need to know what it means for your photos.