Contrast ratio
The ratio between the brightest white and the darkest black a projector or scene can show.
Outdoors, effective contrast is limited by ambient light rather than the projector spec: (projected lux + ambient lux) ÷ ambient lux.
Related terms
- Ambient lightLight from other sources (streetlights, shop windows, the sky) that washes out the project…
- Black levelHow dark ‘black’ really is — projectors always leak some light.
Put it into practice: throw-distance calculator · lumens calculator · intro to projection mapping