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

Shutter Angle Degrees (°)

Required number input.

Frames Per Second (fps)

Required number input.

Exposure duration from rotary shutter angle and frame rate: t=angle/(360·fps); valid for a 0–360° shutter. 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]

Exposure Seconds (s)

The resulting exposure seconds returned as a number.

• Shutter-angle, frame-rate, blur, flicker, and rolling-shutter estimates assume defined exposure timing and scan direction. Sensor readout mode, light modulation, synchronization, motion path, and dropped or duplicated frames affect the observed artifact.
• 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.

• Shutter Speed To Shutter Angle

  Rotary shutter angle from exposure duration and frame rate: angle=360·fps·t; rejects exposure longer than a frame.

• Frame Rate To Shutter Speed

  180-degree shutter convention: exposure duration is half a frame period, 1/(2·fps).

• Motion Blur Shutter Angle

  Shutter angle needed for a target moving-object blur length, from image speed in pixels per second and frame rate.