After the shoot · Developing & darkroom
Personal EI calibration: record the exposure index each film actually gives you, and calibrate your metering to it.
| Where to find it | Tools tab → EI |
|---|---|
| Category | After the shoot · Developing & darkroom |
| Price | Free — every tool is open at this stage, with no paywall |
| Other languages | EI 标定 · EI · EI 標定 · EI校正 |
| Platforms | iOS 17.0+ / Android |
EI is one of 36 photography tools in Optaxis — in the same app as the community and the gear library.
Get Optaxis on the App Store