Calibrated brightness and brightness by mode

Output per picture or power mode (Bright, Cinema, Eco…).

Unit
lm
Standard
Vendor / measured
ISO 21118
Extension

How to compare it

Brightness by mode(lm)

The useful number is accurate-mode lumens, i.e. `observed.calibrated_lumens`.

Calibrated lumens(lm)

Output after calibrating to D65 and the target gamma.

The most useful brightness number for picture-quality buyers.

Standard: Reviewer, D65-calibrated mode

Deep cut

Brightness by mode. On DLP, Bright mode typically engages the white segment and BrilliantColor and drops the colour filter. Removing those for accuracy can cost a large fraction of output. 3LCD loses less, and wide-gamut LCoS modes with a filter lose a lot.

Terms on this page

Calibrated lumens / measured lumens

Brightness measured by a reviewer in the most accurate (calibrated D65) picture mode. Usually 50–80% of the rated figure. This is the most useful real-world brightness number, and it is a review-sourced comparable. ⚖ observed.calibrated_lumens, observed.max_lumens ↑

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