How to calibrate
Step 1: Point at a clear blue sky (no clouds). Press Step 1 to set the sky NIR reference using solar irradiance at your location and time (700-1100nm).
Step 2: Completely cover the camera lens with your hand or any opaque object to capture the zero reference (dark offset). Location is requested automatically on start. Press Update Location to refresh.
πΎ Calibration saved to this device. Each device stores its own calibration independently.
All reported values are incident irradiance at the filter surface (pre-filter, true scene values), not values reaching the camera sensor. Filter transmission factors (NIR: 87%, Melanopic: 4%) are applied internally.
Location not enabled.
NIR ref (mW/cmΒ²)β
Mel ref (mel-lux)β
Live NIR signalβ
Live blue ch.β
Gamma (auto)β
Camera ISOβ
ISO factorβ
Dark offset (NIR)β
Dark offset (blue)β
Manual calibration (reference meter)
Enter known values from a calibrated radiometer while pointing at the same source.
ISO override
Current camera ISO is shown below. If your device does not report ISO automatically, or you want to lock it for more consistent readings, enter a value manually. Changing ISO affects measurement accuracy β recalibrate after overriding.