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

Exposure Seconds (s)

Required number input.

Frames Per Second (fps)

Required number input.

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

Shutter Angle Degrees (°)

The resulting shutter angle degrees 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 Angle To Shutter Speed

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

• 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.