Here is a comparison among projectors from projectorreviews.com.
The Brightness is easy to quantify (lumens).
But the Black Levels are not so easy to quantify?
It seems like the best black levels and color accuracy are from the JVC LCos, with the Sony LCos, Panasonic 4000, Epson 8500, & Optoma HD81LV/HD8600 coming close behind.
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What I'm a little bit concerned about in going from my current Optoma HD81-LV to the JVCs is the brightness.
Even with the lamp on LOW MODE, the Optoma HD81-LV cranks out about 1,200 lumens in Best Mode!
The Optoma HD81-LV's Best Mode, Lamp on HIGH mode cranks out about 1,500 lumens!!!
The DLA-RS25 cranks out 722 lumens in Best Mode, Lamp on HIGH mode.
I'm thinking that my Optoma projector is actually TOO BRIGHT for my own good.
And when I go to a JVC RS25, the 722 lumens is perfect for my own good?