8 terms
Autofocus (AF) in photography is the camera system that measures focus error and drives the lens until the chosen subject is rendered sharp.
Back-button focus moves autofocus activation from the shutter button to a rear camera button, separating focusing from taking the picture.
Contrast detection AF is an autofocus method that moves the lens until image contrast on the sensor peaks, giving precise but slower focus.
Eye AF is an autofocus mode that detects a human or animal eye in the frame and keeps focus locked on it, even as the subject…
Focus peaking is a manual focus aid that highlights high-contrast edges in the viewfinder to show which parts of the image are sharp.
Focus stacking in photography merges several frames focused at different distances into one image with more depth of field than any single exposure.
Phase detection AF focuses a camera by comparing two images from opposite sides of the lens, which reveals both the direction and amount of focus error.
Subject tracking is the autofocus function that identifies a chosen subject and keeps focus on it as it moves across the frame and changes distance.