Evios Light & Exposure
Support and information
About
Evios Light & Exposure is a minimal exposure reference designed to help photographers understand the relationship between shutter speed, aperture, ISO, and exposure value (EV).
How measurements work
- Light is measured using the device camera’s live exposure system.
- EV is derived from the current aperture, shutter time, and ISO.
- Values represent reflected light, not incident light.
- Results may vary depending on scene composition and device hardware.
Accuracy notes
- Suitable for photographic reference and learning.
- Extreme highlights or very low-light scenes may affect accuracy.
- Different devices may produce slightly different results.
Support / Contact
Use the form below for questions, feedback, or support requests. Submissions are stored directly in Google Sheets.