What is the Scheimpflug principle?

The Scheimpflug principle states that sharp focus is achieved along a plane, not just at a single distance. When the lens plane is tilted relative to the sensor plane, the plane of sharp focus also tilts. The sensor plane, lens plane and focus plane all converge at a single line (the Scheimpflug intersection).

What is the hinge distance?

The hinge distance (J) is the distance below the lens where the focus plane pivots. J = focal length ÷ sin(tilt angle). For a 24mm lens tilted 5°, J = 24 ÷ sin(5°) = 275mm. This point stays fixed as you change focus distance — focus just rotates the plane around this hinge.

When should I use tilt?

Tilt the lens to align the focus plane with your subject plane. For landscape: tilt down to keep foreground and horizon both sharp at wide apertures. For architecture: keep shift parallel (no tilt) to prevent converging verticals. For creative effect: reverse tilt to create selective miniature focus.

How much tilt do I need?

Typically very little. 2-5° of tilt is usually sufficient for landscape photography. The exact amount depends on the angle between the camera and the subject plane. Start with 2-3° and adjust while checking focus in live view. Too much tilt tilts the focus plane too steeply.

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How We Calculate This

Scheimpflug Principle

When the lens is tilted, the sensor plane, lens plane and plane of sharp focus must all intersect along a common line.

Hinge Distance

J = focal length ÷ sin(tilt angle)

The hinge distance is measured below the lens and depends only on focal length and tilt — focusing rotates the plane of focus about this fixed line, it does not move it.

Focus Plane Angle

tan(ψ) = (subject distance ÷ focal length) × sin(tilt)

The angle of the plane of sharp focus to the image plane grows with focus distance: refocusing farther rotates the plane towards perpendicular (90°). This is why subject distance, not tilt alone, sets the focus-plane angle.

Wedge Depth of Field

With tilt, depth of field is wedge-shaped — zero at the hinge line and widening with distance. The half-height of the sharp zone (measured parallel to the sensor) at the subject is J × subject distance ÷ hyperfocal distance, where hyperfocal H = f² ÷ (N × CoC). Stopping down (larger f-number) shrinks H and widens the wedge.

Frequently Asked Questions

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Last updated: February 2026

All calculations are estimates based on standard optical and photographic formulas. Results may vary with specific equipment.

Tilt-Shift Calculator — Scheimpflug Plane of Focus