Originally Posted by jimchao
I have updated a graphic of DCI-P3 view.
Great, thanks. Seems that BenQ was not exaggerating about 100% DCI-P3, looks pretty damn close to perfect.
I know you are trying to compare to your old W5000 which uses 0.95 chip. As my review, it just can't compete some old hi-end PJs, especially on the contrast. I may say, they are in different level. Or maybe this is the first gen. of WCG PJ, still way to go. Maybe we can wait for some other trusted professional measurement review later.
That's what I was afraid but as my current projector is over 10 years old, I must prepare myself to that it may die anyday. Since material I mostly watch is still 1080p resolution and some odd DVD's occasionally, so even with UHD projector I'd say over 95% would still be those.
Could you still post what readings for black with and without DI you measured from yours? I'm trying to figure out how grey blacks are in these 4K DLP's today, is it like 2-3x higher than in mine? It is impossible to tell surely that from the screenshots, honestly those you posted look better than what my projector looks in real life, so I guess it cannot look that good in reality…?
Seem that comparing to W2700 review I saw, even that had twice as good native contrast than W5700 which is a bit odd.
I did some conversions based on the nits reading you mentioned and if I didn't make mistake I got following numbers.
53 nits = 15.47 ft-L
3150:1 contrast ratio with DI on
so 15.47 / 3150 = 0.0049 ft-L black
35 nits = 10,22 ft-L
1700:1 contrast ratio with DI on
so 10.22 / 1700 = 0.006 ft-L black
Obviously those numbers are higher but maybe not as bad as I first thought. Maybe I could compensate a little by dropping brightness to get even deeper black but hard to say if it makes picture just seem flat as contrast ratio is pretty low in the begin with. Have you made any test how ansi contrast is in W5700? I guess based on the full on/off contrast ratio without DI you mentioned, it must be only in the range of 200:1 or so?
EDIT 2. Then again just realizing that your screen is quite large (135") causes that black level would be much higher with mine about 95" screen, so I guess my first estimation might have matched better (2-3x higher than in my current pj).
I normally check my PJ every 6 months, so let's wait the lamp runs a while.
I used to track mine also often in the first few years but then I noticed that Philips lamp used in mine was very consistent and even replacement lamp did not made difference in readings so much that adjustments were needed. Isn't it Philips lamp in this model too? I hope they are still as good as they use to be. At least lifetime has improved a lot, so I guess they might be still really good.