Ninguna marca está libre de pecado. Sony por ejemplo tuve que hacer frente a importantes demandas judiciales por el mal funcionamiento de los iris dinámicos.
http://homecinemaguru.com/?p=1253
How projectors with dynamic irises compare to high native contrast products like DLIA is what matters. In practice many of these irises are unfortunately obvious. The two obvious problems are that they can be noisy and cause the image brightness to vary unnaturally. These problems can also get worse as the product ages because the iris mechanism wears. The third problem I see are scenes with a few bright elements in a generally dark scene the bright elements are obviously dimmed. The fourth problem I see is the factory calibration of this feature can vary wildly. Some samples of the same product can work without obvious problems while with another projector the dynamic iris is so anoying it is unusable. Sony appears to do this the best of every manufacturer I have seen, but unfortunately SXRD has had significant reliability problems resulting in law suits.
Aunque de momento el mio va bien.