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

Intensity Candelas (cd)

Required number input.

Projected Area Square Meters (m²)

Required number input.

Directional luminance in nits (cd/m²) from luminous intensity in candelas divided by projected emitting area. 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]

Luminance Nits (cd/m²)

The resulting luminance nits returned as a number.

• Contrast, dynamic range, luminance, screen gain, and foot-lambert calculations depend on measurement pattern, black level, ambient light, viewing angle, tone mapping, projector calibration, screen uniformity, and standard.
• 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.

• Lens Shift Percentage

  Vertical lens shift as optical-axis offset divided by projected image height, expressed as a signed percentage.

• 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.