Originally Posted by fightclub
Comparing with SONY HW50/55, JVC x35/RS46 is not so bright. however, in this thread, seems like no one is complaining about the brightness of JVC? This is because all JVC user has very good light control and dedicated AV room?
just my 2cents.
my eyes can easily adjust to a brighter or dimmer image within the range of say 400-1000 lumens(just guessing from experience). I know with my jvc, when I open up the iris, and wait 5mins I enjoy the image. when I clamp down the image and wait 5mins, I enjoy the image. the difference in brightness between those two settings is completely irrelevant after my eyes adjust.
now when I first switch from iris open to the iris closed, the image looks dim and unimpressive. like when you come inside from a bright sunny day and you can't see cause it's all dim inside.
further, my theory is that what's most important is your reference black and reference white. this is more with flat screens, but I don't see why it wouldn't apply here as well...
I see a HUGE difference in blacks because in a dark room I have 'reference black' that is essentially black. the black walls in a dark room with no lights shining on it definitely looks black, and usually blacker than what on screen. because of this my eyes notice that black on-screen isn't quite black. with a flat screen, turning on the lights makes my reference black in the room rise above what is black on screen, and now on screen black looks totally black(this obviously doesn't work with a white projection screen).
as far as brightness/whites goes, it's the same thing. in a dark room, my reference white is whatever the brightest image on screen is, because there's nothing in my room even close to that brightness. so even a dim white on screen looks bright to me. if I turn on the lights(again this applies more to flat screens) I'm now presented with a brighter room, but it needs to be REALLY bright before it's brighter than 'white' on screen.
based on these two things, it's been my experience that basically any reasonable brightness for 'white' will be the brightest light in my room, and therefore look 'white' to me. on the flip side, since almost all my viewing is in the dark, I have a very dark reference black level, and even the best displays are still brighter, so any improvement in black levels will be noticed, and is significant.
ok, maybe that was 4cents worth... I guess to sum it up, I think it's easier for our eyes to adjust to a dimmer image and still find it pleasant, as long as you don't have a brighter image right beside it to compare to.