Photography Calculators
Depth of field, hyperfocal, field of view, equivalent focal length, exposure value, macro magnification, crop factor and more photography optics tools.
Depth of Field
Compute hyperfocal, near/far limits and DoF from focal length, f-number, focus distance and circle of confusion.
Hyperfocal Distance
Compute hyperfocal distance from focal length, f-number and circle of confusion.
Field of View
Compute angle of view (deg) from focal length and sensor width.
35mm Equivalent Focal
Compute 35mm equivalent focal length = actual × crop factor.
Exposure Value
Compute EV = log₂(N²/t · 100/ISO) from f-number, shutter and ISO.
Macro Magnification
Compute magnification = extension / focal length from tube length and lens focal.
Subject Distance
Compute shooting distance = (width/2) / tan(AoV/2) from angle of view and frame width.
Crop Factor
Compute crop factor from sensor diagonal vs full-frame (43.3mm).
Handheld Shutter
Compute safe handheld shutter = 1 / equivalent focal length (s).
Pixel Pitch
Compute pixel pitch (µm) = sensor width (mm)·1000 / pixel width.
Focal from AoV
Compute focal length = width / (2·tan(AoV/2)) from angle of view and sensor width.
Close-up Lens Magnification
Compute added magnification = diopter × focal / 1000 from lens focal and close-up diopter.