Assertion: lens's area | /r/AtLocation | focus
Facets:
Source sentences:
text: Depending on the camera to subject distance and aperture, the depth-of-field can be very narrow, limiting the linear depth of the area that will be in focus.
text: Plus the area of your image that would be in-focus would be so thin as to be useless, and, the cherry on top: this lens would be obscenely expensive to make.
text: Depth of field refers to the area that will be in focus when taking a photograph.