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Video & Timecode Calc – Shutter Angle Converter
x402
Video & Timecode Calc – Shutter Angle Converter is a paid API for AI agents from video-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).
Converts shutter angle to exposure time (and back) at a given frame rate, and returns the nearest flicker-safe shutter angles for 50 Hz and 60 Hz mains power.
Price / call$0.02
Success—
StatusUnknown
How this service works
Convert shutter angle to exposure time (and back) at a frame rate, plus the angle that avoids 50 or 60 Hz flicker.
Output
Returns the computed shutter angle in degrees, exposure time in seconds and milliseconds, shutter speed denominator (1/N), and frame duration in milliseconds. Also includes two flicker-safe sub-objects (one for 50 Hz, one for 60 Hz), each giving the nearest safe shutter angle, the corresponding exposure seconds, and the shutter denominator — so you can immediately dial in a safe setting on your camera.
Example use cases
Flicker-safe shutter for studio shoot
“I'm filming an interview in an office with fluorescent lights running on 60Hz power at 29.97fps — what shutter angle should I use to avoid flicker, and what's the actual exposure time?”
Convert shutter speed to angle for cinema camera
“My cinema camera asks for a shutter angle but I want 1/50 second exposure at 25fps — what angle is that, and is it already safe for 50Hz flicker?”
Find frame duration and shutter for slow-mo
“I'm shooting at 48fps with a 180-degree shutter angle — what's my actual exposure time in milliseconds and what's the frame duration?”
Technical details
Endpoint
GEThttps://video-calc.x402tookit.com/shutter-angle?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to convert between shutter angle (degrees) and actual exposure time for a specific cinema frame rate, or when you need to find the nearest flicker-safe shutter setting for 50 Hz or 60 Hz artificial lighting. It is the right choice over generic fraction calculators because it understands cinema frame rates (including drop-frame rates like 23.976 and 29.97), provides both directions of conversion, and explicitly returns optimised flicker-avoidance angles for both mains frequencies in one call.
Side effects
- Missing both 'angle' and 'shutterDenominator' parameters — endpoint requires at least one
- Invalid fps value not in supported set (23.976, 24, 25, 29.97, 30, 48, 50, 59.94, 60) — may return error or default to 24
- Shutter angle of 0 or negative degrees is out of range — valid range is above 0 to 360
- Payment failure or insufficient USDC balance resulting in 402 response
- Network timeout or service unavailability
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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