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Photography & video

Shutter Angle Calculator

Convert frame rate and shutter angle into exposure time for video.

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Video exposure desk
Video exposure desk

See the exposure duration corresponding to your frame rate and shutter angle.

See the method

Set frame rate and angle

Runs on your device

Exposure time

Your result

Let’s calculate.

Use the Calculate button to see your result.

Review the method below for assumptions and conventions.

How to use this tool

  1. Enter frame rate, shutter angle.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

The method, explained

Exposure time = shutter angle/(360×frame rate). Reciprocal shutter speed = 1/exposure time.

A WORKED EXAMPLE

Using frame rate = 24 fps, shutter angle = 180 degrees, the result is 0.0208333333 s. Change these example inputs to match your task; use the method above to check each step.

Understanding your result

One exposure per frame. Sensor readout, light flicker and camera-specific shutter restrictions are not included.

What to keep in mind

One exposure per frame. Sensor readout, light flicker and camera-specific shutter restrictions are not included. An ideal geometric or exposure estimate. Lens behavior, stabilization, sensor crop and scene conditions may change practical results.

Common questions

How do I use this shutter angle calculator?

Convert frame rate and shutter angle into exposure time for video. Enter frame rate in fps, shutter angle in degrees. The starting example is editable; use values for the same system or project.

Which assumptions affect this result?

One exposure per frame. Sensor readout, light flicker and camera-specific shutter restrictions are not included.

Methodology maintained by ClarityKit. How these tools are built and checked.