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Calculate depth of field from aperture, focal length, sensor size, and subject distance. See near and far focus limits for sharp photos.
Calculate correct exposure with the exposure triangle. Set ISO, aperture, and shutter speed for balanced photos in any lighting situation.
Convert focal length between camera sensor sizes using crop factor. Find full-frame equivalent focal length for APS-C, MFT, and more.
Hyperfocal H depends on focal length, aperture, and circle of confusion. Focus at H to extend sharp depth from H/2 to infinity.
H = f² / (N × c) + f (f = focal length, N = f-number, c = CoC)When focused at hyperfocal distance, the near limit is H/2. Beyond H, far limit reaches infinity — the maximum practical DOF for that aperture.
Near limit ≈ H / 2 when focused at HCoC varies by sensor and intended print size. Smaller CoC yields longer hyperfocal distances and stricter sharpness standards.
c ≈ diagonal / 1500 (standard approximation)Updated: July 2026
Hyperfocal may fall around 2–3 meters. Focus slightly beyond that point on a foreground rock; distant mountains stay sharp.
Wider focal length and smaller CoC interact — hyperfocal can be under 1 meter, making handheld near-far compositions easier.
If the nearest important foreground is closer than H/2, focus stack or accept softer near objects — hyperfocal cannot defy physics.
Infinity focus wastes near depth. Set focus to hyperfocal or slightly beyond so foreground elements inside H/2 remain acceptably sharp.
Diffraction at f/16–f/22 softens the entire image on many sensors. f/8–f/11 often balances DOF and resolution better than extreme stopping down.
Hyperfocal distance is the closest focus setting that keeps infinity acceptably sharp while maximizing near sharpness. Landscape photographers use it to capture sharp foreground and sky without refocusing.