Shutter angle and exposure time
Translate a cinema shutter angle and frame rate into exposure time. The reciprocal denominator helps compare the result with a camera’s 1/x-second setting. Use it when switching between still-camera and cinema-style controls.
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Your inputs
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How it works
- Exposure time = ÷ (360 × )
- Denominator of 1/x second = 1 ÷ Exposure time
- Worked example
- 180 ÷ (360 × 24) = 1/48 s
Input and formula key
Your result
Complete the inputs to see your result.
Assumptions and limitations
Angle is greater than 0 and no more than 360 degrees. Exposure cannot exceed one frame period. Camera limits may reject otherwise mathematical values. This does not choose an artistic motion-blur setting or prevent flicker from lights and displays.
Sources
- ARRI — exposure time and shutter angle Sources reviewed: 2026-10-28
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Sources and maintenance
Maintained by emonster. Sources are listed with their own review dates; these are not live-data timestamps or claims of independent expert certification.
