Nella recensione del B650, su hdtvtest, non c'è menzione dell'auto dimming (come detto io non li ho visti, quindi non so nulla sulle prestazioni).
Si e' vero la recensione del B650 su hdtvtest non menziona l'auto dimming ma lo fa la recensione sempre del B650 di avforums,ne riporto la conclusione:
Conclusion
All things considered, the LE40B651 is mostly good news. The way in which Samsung have tried to compensate for LCD's natural contrast deficiencies with the auto-dimming feature isn't to my liking and I'd appreciate being given control over it, but that doesn't change the fact that the TV has above average Greyscale performance and excellent colour reproduction. Nor does it change the fact that it shows standard-def TV broadcasts and other sources in a mostly favourable way. Really, this display is typical of most Samsung LCD HDTVs these days: impressive for the most part, chock-full of image processing options (both useful and not), and with a few quirks to anticipate as part of the package.
Cosa ne pensi,quale recensione puo' essere piu' attendibile secondo te?