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Expanded by 1 point all around assists the photographer’s selected AF point
EF16-35mm f/2.8L II USM 1/2000 sec. f/5.6 ISO320
For illustrative purposes, all AF points are displayed superimposed. The blue assist AF points are for illustrative purpose only, and they do not actually light up in blue.
For sporting events that include dynamic up and down movement, tracking the athletes with one AF point is
difficult. By using area expansion, it is easier to pursue the subject accurately with an expanded area.
