What is the depth of field at 200mm f/2.8 on full frame?
At 200mm, f/2.8, on full frame, focused at 15 meters — a realistic distance for a sideline sports or wildlife shot — total depth of field is roughly 90cm, running from about 14.56m to 15.46m from the camera. At this reach, that's a genuinely narrow window: a subject moving even a couple of meters toward or away from the camera can fall outside the sharp zone entirely.
Why Continuous Autofocus Tracking Matters So Much at This Combination
200mm's long real focal length keeps depth of field genuinely thin even at a moderate 15-meter distance, which is exactly why sports and wildlife photographers using lenses in this range lean so heavily on continuous autofocus tracking rather than single-shot focus-and-recompose technique — a moving subject can cross the entire sharp zone in a fraction of a second at this focal length, and refocusing has to keep pace continuously, not just once per shot.
What Changes This Number
Stopping down to f/5.6 roughly doubles the total depth of field, to about 1.8m at the same distance — a real, useful adjustment when tracking a subject that's moving unpredictably toward or away from the camera and precise focus placement can't be guaranteed every frame. A closer subject narrows the sharp zone further; a more distant one widens it.
Get the precise figure for your own subject distance in the DoF & Hyperfocal Calculator, pre-filled with 200mm f/2.8 at 15 meters.
Frequently Asked Questions
Is 90cm of depth of field enough for wildlife photography at 200mm?
It's workable for a stationary or slow-moving subject, but genuinely tight for anything moving quickly toward or away from the camera — many wildlife photographers stop down slightly or rely heavily on continuous autofocus tracking specifically because of how thin this margin is at long focal lengths.
Why does depth of field matter less for framing than for focus accuracy at 200mm?
Because the sharp zone is so narrow relative to typical subject movement at this focal length, getting the composition right matters less than continuously nailing focus on the correct point — a well-framed but slightly front- or back-focused shot at 200mm f/2.8 will still read as visibly soft.