Use this cinematography or projection calculation to plan image geometry, exposure, timing, storage, film footage, or presentation from explicitly stated camera and display parameters.

Vertical Offset Meters (m)

Required number input.

Image Height Meters (m)

Required number input.

Vertical lens shift as optical-axis offset divided by projected image height, expressed as a signed percentage. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Shift Percent (%)

The resulting shift percent returned as a number.

• Angle-of-view and equivalent-focal-length calculations use nominal sensor or film dimensions and an ideal rectilinear lens. Focus breathing, distortion, image-circle cropping, stabilization, anamorphic optics, and manufacturer crop conventions can change the captured field.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Confirm critical values with the actual camera, lens, codec, projector, and delivery specification, then run a camera or projection test under representative conditions.

• Projector Screen Width

  Projected image width from lens-to-screen throw distance divided by lens throw ratio.

• Projector Throw Ratio

  Projector throw ratio as lens-to-screen distance divided by projected image width in matching units.

• Anarmorphic Squeeze Factor

  Horizontal anamorphic squeeze factor from unsqueezed scene width divided by recorded squeezed image width.