exposure-calc
Photographic exposure value: solve aperture, shutter, ISO or EV, with equivalent exposures — Given any three of aperture (f-number), shutter time in seconds, ISO and scene EV at ISO 100, solves the fourth from EV = log2(N^2/t) and EV_S = EV_100 + log2(S/100), names the nearest one-third-stop f-number, and lists the equivalent shutter time at each f-number from f/1 to f/32. Given all four, checks that they agree within a tolerance in stops. Built for camera, lighting and image-generation a
Tool call template
This tool declares no required parameters. Add optional parameters from the input schema as needed.
{
"id": 1,
"jsonrpc": "2.0",
"method": "tools/call",
"params": {
"arguments": {},
"name": "exposure-calc"
}
}Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| iso | No | ISO speed S. | |
| ev100 | No | Scene light as exposure value at ISO 100. | |
| aperture | No | f-number N. | |
| shutterSeconds | No | Exposure time t in seconds. | |
| toleranceStops | No | When all four are given: largest EV100 disagreement accepted (default 0.05). |