Es lo que te comentaba, 89cd/m2 pero con "sólo" 0.02 de black level. En HDtvtest se va sobre 70cd/m2 dando un black level de 0.011/0.013:
Panasonic TX-P65VT30B PerformanceOur only lingering complaint is with the light output from the panel: in the [Professional] modes, a 100% white window test pattern measured at just 70 cd/m2, which is fairly dim. Panasonic would likely counter any complaints about light output by reminding users that the mode is called “Professional”, and professional studio monitors, installed in purpose-built dark conditions, are also typically set up to produce fairly low light output. We imagine that much of the inclusion of a peak brightness cap on this consumer panel has more to do with power consumption legislation, of course. The [THX] picture mode is brighter, but it lacks all of the calibration controls present in the Professional modes.
Yo me quedo con la primera calibración para ambientes de luz media o media/alta (aunque 89cd/m2 sigue siendo demasiado oscura para mi gusto para dicho ambiente) y con la segunda calibración (70cm/m2 con 0.013 de black level para ambientes oscuros.
El "problema" es que si te sales del modo de calibración profesional para poder tener más salida de luz para ambientes luminosos en IRE 100% ya no tienes la misma flexibilidad en los ajustes.
Un saludete