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Agree with both Sage n DunMunro, I watched again. It seems the details varies from scene to scene . At least, it confirms the picture quality of W5700 are very close to LCOS, which are double or even 3 times the price of BenQ.
 

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I am loving the picture on my HT5550. This is why I am afraid to go with an AT Acoustically Transparent screen. I dont want to lose that sharpness or even the gain of a 1.1 or 1.2 screen...
 

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Came down to Epson 5050 vs. Benq 5550 for me. Drew up this here comparison of the advantages of each to help me decide. Might be some fun smarky remarks from the peanut gallery on this one.

Pros

Epson
rating frequency score

Better blacks 3 * 2 = 6
better contrast 2 5 10
electronic zoom and shift and memory 1 1 1
better lag 3 1 3
brightness 2 10 20
quieter 9 10 90
remote 2 1 2

total 132

Benq

better resolution/sharpness 5 10 50
color 5 10 50
auto hdr 1 5 5
better 3d 3 2 5
already calibrated 3 10 30
cheaper 3 1 3
3:2 pulldown on Epson? 0
motion 6 10 60
smaller and black 1 1 1
brighter p3 color 5 3 15

total 219

Edit: Well the columns didn't display as they do in the message box but hopefully you get the gist.
 

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I am loving the picture on my HT5550. This is why I am afraid to go with an AT Acoustically Transparent screen. I dont want to lose that sharpness or even the gain of a 1.1 or 1.2 screen...

So Jrunr, did you get a unit with the new TI/Iris firmware already in place, and just waiting on the user firmware for the three-stage iris setting? Or will it still have to be sent in for service updates?
 

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Dilemma

I have been following this thread for a while and was about to order the W5700 (2700 EUR), until I just found a deal on a demo JVC RS-440 for 2600EUR with only 60 lamp hours.
Can't find any existing discussions for this PJ comparing it to a JVC RS-440 (aka JVC DLA-X5900). Do you have any thoughts or experiences on this?
 

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Out of box measurement
Picture in D. Cinema mode (WCG auto engaged)
Gamma 2.35
Contrast: 435:1
DI on contrast 1700:1
Brigness: 35nits




Rec 709 view


Ref. DCI-P3 view


HDR Brightness
My HT5550 is now using 250hrs. I finally got HDR PATTERN to perform further measurement. With HDR PATTERNS, I got color measurement result same as original measurement as above. The biggest different is to set the contrast to 43-44 and the brightness to 57-59 to get best picture result. And the brightness got final result to 50 nits which same as my anticipation of it's brightness ability. And the contrast goes to 1400:1 DI on.

For those who wants to get good picture quality result of 4K HDR can just use D.Cinema mode, Gamma 2.3, Light: normal, brilliant color: on and try my contrast and brightness setting. Also let me know your comments
 
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If I am using a 92” 16x9 with 1.3 gain, n sitting 12ft. away in a room with blackout drapes, should I be using the lower figures of your Contrast n Brightness ? Thanks
 

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If I am using a 92” 16x9 with 1.3 gain, n sitting 12ft. away in a room with blackout drapes, should I be using the lower figures of your Contrast n Brightness ? Thanks
If you don't have same screen gain of mine (gain 1.0), or HDR PATTERN, you could try this scene to adjust your contrast and brightness in D.Cinema HDR mode.

Pacific Rim

 
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If you don't have same screen gain of mine (gain 1.0), or HDR PATTERN, you could try this scene to adjust your contrast and brightness in D.Cinema HDR mode.

Pacific Rim

Hi Jimchao,

Thanks for your input. I did input your settings into the ‘D. Cinema’ mode of my unit. However, when I played a HDR disc, the Picture mode automatically locked on HDR mode n no indication it’s on D. cinema mode. Also, I cannot select it since the Colour Mode column is whiteout. Wonder what did I do wrong.
 

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Hi Jimchao,

Thanks for your input. I did input your settings into the ‘D. Cinema’ mode of my unit. However, when I played a HDR disc, the Picture mode automatically locked on HDR mode n no indication it’s on D. cinema mode. Also, I cannot select it since the Colour Mode column is whiteout. Wonder what did I do wrong.
If you put the HDR Disc in and turn off HDR in the projector menu (Default is Auto) you can then select D. Cinema mode and any other mode for that matter.
 

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Hi Jimchao,

Thanks for your input. I did input your settings into the ‘D. Cinema’ mode of my unit. However, when I played a HDR disc, the Picture mode automatically locked on HDR mode n no indication it’s on D. cinema mode. Also, I cannot select it since the Colour Mode column is whiteout. Wonder what did I do wrong.
All modes setting can be set before playing. You can still adjust Brightness and Contrast while HDR locked.
I tried 1080p in D. Cinema mode/WCG "ON" would not effect the 4K HDR brightness and contrast settings, which means 2K and 4K can be set in different brightness and contrast.
 

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Thanks both Dferguso n jimchao. U meant once in D. cinema mode ,it will automatically detect HDR material on the disc ?
 

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Thanks both Dferguso n jimchao. U meant once in D. cinema mode ,it will automatically detect HDR material on the disc ?
H5550 will auto detect HDR signal and will auto-lock in D. Cinema Mode.
 

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Hi jimchao,

I just turned HDR from Auto to Off. Now I can input your settings into D. Cinema mode. However, when I started playing a 4K HDR disc, I selected D. Cinema but HDR cannot be detected until I switched the HDR function back to Auto.
Hope you don’t mind to tell me what did I do wrong. Is it the sequence ?
 

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I'm confused as to what the scenarios are for when someone would want to use the D. Cinema mode. Is it closer to the rec.709 color space than the Cinema setting? My understanding is that HDR content is rec.2020, which would invoke the HDR picture mode unless you manually turned it off, which seems like it would defeat the purpose of watching HDR content.

So would D. Cinema be appropriate when watching non-HDR 4k content?
 

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I'm confused as to what the scenarios are for when someone would want to use the D. Cinema mode. Is it closer to the rec.709 color space than the Cinema setting? My understanding is that HDR content is rec.2020, which would invoke the HDR picture mode unless you manually turned it off, which seems like it would defeat the purpose of watching HDR content.



So would D. Cinema be appropriate when watching non-HDR 4k content?

Short answer: yes.

Long answer...

D Cinema is the factory calibrated picture mode which, ideally, is recommended for use in a fully light controlled environment with standard dynamic range content when picture quality/color accuracy is the priority. Doesn’t matter if it’s HD or 4K or whether it takes advantage of a larger color space or not as long as it’s SDR.

Diablo I know you know this next part but for anyone reading along who doesn’t..

Projectors aren’t really capable of HDR. To display HDR the projector needs to tone map the content to something the projector can display. It is impossible, currently, for any projector to display HDR natively without some additional tone and gamut mapping (to avoid clipping). Honestly, HDR is a flat screen thing and none of those designing these HDR ‘standards’ have given any thought to how it would work on a projector. Because of this, the quality of a manufacturers tone mapping is maybe one of the most important things to consider when shopping for a 4K projector as this can be a make or break issue regardless of the underlying picture quality of the projector. BenQ does a really awesome job here with their HDR Pro tone map. The resulting HDR picture isn’t necessarily strictly accurate— because no projector can display HDR ‘accurately’— but it’s a good facsimile and does so with few compromises (IMO).

One more note: the UHD spec packages everything in a BT2020 ‘container’ but I’m not aware of any content that actually uses the Bt2020 colorspace— maybe someone can chime in here if I’m wrong or if they know of any material. As far as I know almost everything coming out today is either DCI-P3 or Rec.709.
 

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@sage11x,

While you are on the subject of Tone-mapping, I hope u can give me some advice. I am using a Panasonic UB820 player, should I turn on the HDR Optomizer of it ? Wonder if this will interfere the HDR Pro inside the W5700 ?
 

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I've been looking at potentially upgrading my projector screen from 110" to 135". The projector is mounted about 14 feet from the screen, and my seating position is around 10.5 ft away. My concern is whether or not there will be enough fL (since in reality, the picture modes I'd be leveraging are around 800-1000 lumens based on what I've read in reviews).

I seem to recall @scottyroo saying he had a 135" screen and it was plenty bright, but I couldn't recall or find mention of it.
 
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