Quote:
Originally posted by dpeart
Both of those look interesting, I woud like to have vertical lens shift as my pj has to be mounted below my ceiling fan/light fixture. This makes it below the top of the screen. Horizontal alignment is not as important as I can move my mount on the ceiling to fix that.
What trade offs are there when you reduce lumens and increase screen gain? I know that going from 1000lumens -> 2000 lumens does not double the screen brightness. Does going from a 1x to a 2x screen double the brightness, increase the black level?
thanks, |
2X gain will double the brightness. And doubling the lumens does double the brightness, but the response of your eye is not linear, so it does not seem twice as bright. Same will apply for screen gain increase. And yes, in either case, black level doubles as well. In the case of a dimmer projector, it will not compete as well with ambient light. The highpower is nice in this regard, as unless your ambient source is behind you, it tends to reject it better than a more matte screen. If you have ambient, black level is not as much of an issue as it will be destroyed anyway.
If you end up going with something significantly dimmer than the 70, you will need to give it a few viewings before the sense of diminished brightness stops bothering you. My friend who had watched many movies at my house got the HS20, and it bugged him for about a month but he is perfectly happy now.
The Sharp will be a nice machine, but it does have the limitations of single chip DLP (rainbows and dithering) which Andy seems to have disregarded as pertinent. Make sure they are not issues for you, they certainly aren't for most people. The contrast will be hugely better than the Sanyo, and this does make a tremendous difference, and the SDE and VB will be reduced/gone.
The Canon may be a problem with your ceiling fan if you are ceiling mounting. I table mount mine, so I can make the Canon work in my situation, which is very similar to yours (120" screen, ceiling fan, copious quantity of windows and poor light control).
My friend's Sony is significantly dimmer, and is in the same type house with the same HP screen (slightly smaller though), and he is unable to watch during daylight, period. His situation is compounded by white walls, whereas mine are a rather dark color.
Your near-ideal replacement may not exist yet. Mine doesn't. Basically, I am looking for a 2000 lumen HX-2, and it ain't here yet.
BB