Are you talking about using Cinema picture mode and BT2020? I am not saying that. Using Rec 709 color space, if you select Cinema picture mode, the filter is used. This should not give you over saturated colors.

I'm new to projectors and I would really appreciate input from more experienced users on this dilemma I am facing.

I've read great things about the DLA-X7900/RSA540 and I was able to find a good deal on it and ordered it before they went basically extinct (it's impossible to get one now). I just received a message today that my X7900 is available for pick-up.

The dealer told me in a side-sentence that the new N5/N7 should be available "shortly" and asked do I want to wait for that instead and even gave me a pretty good deal on it. I had already kind of decided before not to wait because the price tag of N5 is over 2000 euros more expensive than the X7900, but with the discount it'd be little less than that. I've read about the differences between the X7900 and N5 and tried to figure out whether the extra price tag makes sense for me.

One thing that I noticed that N5 also misses that X7900 has is the automatic lens cover. Do people usually put on the lens cover when the projector is not in use? I'm pretty sure if the lens cover is not automated I would easily forget to put on the cover. Does this mean I need to clean up the lens more often or does it even matter at all?

UPDATE:

Here are my amended recommendations:

----------------------------------------------------------------------------------------------------------------

My PICTURE MODE and COLOR PROFILE initial setup and recommended settings as per follows:

SDR:

If you don't want to use the color filter --> PICTURE MODE: NATURAL

If you want to use the color filter... and own a JVC RS3000/NX9 --> PICTURE MODE: THX

(Note: You won't need to change the COLOR PROFILE setting for either of these as the factory default is the correct setting)

If you want to use the color filter... and own a JVC RS2000/NX7 --> PICTURE MODE: USER1 --> COLOR PROFILE: CUSTOM1 + Upload the attached custom gamut file


HDR:

If you don't want to use the color filter --> PICTURE MODE: HDR10 --> COLOR PROFILE: HDR

If you want to use the color filter --> PICTURE MODE: HDR10 --> COLOR PROFILE: BT2020

(Note: HDR10 PICTURE MODE will be switched to automatically by the projector in response to an HDR video signal)

One thing that I noticed that N5 also misses that X7900 has is the automatic lens cover. Do people usually put on the lens cover when the projector is not in use? I'm pretty sure if the lens cover is not automated I would easily forget to put on the cover. Does this mean I need to clean up the lens more often or does it even matter at all?

Good stuff but I will caution on using the THX mode. If it is anything like the models of the past, there is a chance it limits your ability to do any calibration/adjustment to some settings. I can understand some talking about gamut coverage but just about every JVC I've ever measured covers 99+% of 709 with no filter at all. If you find the Standard color profile doesn't fit the bill, Custom 1 typically does (only available in user picture modes). Or you can load the 709 profile that Manni created a long time ago in his calibration thread. Cutting your light output by as much as 20% for less than 1% gamut coverage seems rather silly to me. Typical dE's for 709 at 100% saturation on a calibrated JVC is well below 2 and typically below 1. Usually the only issues are the hue shift in 100% green and saturation tracking above 60% with red.

Wow you've checked all the boxes in my opinion:

1) You're close enough to your 120" screen to benefit from the native 4K.
2) You're 50% games. There's a *huge* difference between 4K and 1080p/eshift gaming.


Lumens will be a wash. JVC will get the black floor pretty good even on the N5. I'd definitely go with the N5 in your case.



And this. This will be far better with the projector tone mapping, in my opinion. Although Apple TV = big ugh

Good stuff but I will caution on using the THX mode. If it is anything like the models of the past, there is a chance it limits your ability to do any calibration/adjustment to some settings. I can understand some talking about gamut coverage but just about every JVC I've ever measured covers 99+% of 709 with no filter at all. If you find the Standard color profile doesn't fit the bill, Custom 1 typically does (only available in user picture modes). Or you can load the 709 profile that Manni created a long time ago in his calibration thread. Cutting your light output by as much as 20% for less than 1% gamut coverage seems rather silly to me. Typical dE's for 709 at 100% saturation on a calibrated JVC is well below 2 and typically below 1. Usually the only issues are the hue shift in 100% green and saturation tracking above 60% with red.

PQ describes brightnesses, yes, but the eye doesn't see brightness, it sees contrast with the iris being the mechanism for ranging that contrast; with those brightnesses viewed through a window against a 5 nit background. You can't consider the 2000 nits peak for those sets without also simultaneously considering the 5 nit D65 surround lighting that REC2100 / SMPTE would have you looking at it amidst for a "reference" viewing environment. You can do the math as to what contrast ratio this leaves you looking at on screen. HDR for television has been conceived to give this improved dynamic range in the home environment, which was clearly lacking before if you considered a 5 - 12 nit surround with 100-120 nit image.

Good stuff but I will caution on using the THX mode. If it is anything like the models of the past, there is a chance it limits your ability to do any calibration/adjustment to some settings.

I can understand some talking about gamut coverage but just about every JVC I've ever measured covers 99+% of 709 with no filter at all. If you find the Standard color profile doesn't fit the bill, Custom 1 typically does (only available in user picture modes). Or you can load the 709 profile that Manni created a long time ago in his calibration thread.

Cutting your light output by as much as 20% for less than 1% gamut coverage seems rather silly to me. Typical dE's for 709 at 100% saturation on a calibrated JVC is well below 2 and typically below 1. Usually the only issues are the hue shift in 100% green and saturation tracking above 60% with red.

I'm not sure I am following you or not, so perhaps you could clarify? When you say the eye doesn't see brightness, but contrast with the iris being the mechanism. Prior to my RS440, I owned an RS4910. In my set-up, the 4910 was giving me about 50% more native contrast but with around 30% less light. I much prefer the RS440 as the extra brightness made a much bigger impact for HDR despite the black floor being higher. (Note, my room is also painted/carpeted completely black along with Protostar and velvet treatments closer to the screen).

Does the NX7 blow away the RS640 overall in PQ?

Kris, thank you for that perspective on the well calibrated JVC PJ. Could you please weigh in on the likely real world viewing experience regarding choosing the HDR color profile (no color filter) versus BT2020 (with color filter) for home theater applications with PJ & screens of over 35 fL for those of us with NX7/9 projectors? Thanks!

I wonder about the lack of the 2nd iris on the N5? If you configure your screen/projector for the best possible HDR won't SDR be way too bright? On the 7 and 9 you can use the 2nd iris to bring the SDR brightness down but you can't on the N5 right?

Entirely possible that I don't understand!

It doesn't matter at all...

I read in the promo materials on page 1 that the N7/NX9 (like the X7900) have a Dual Aperture Design.
I understood that this means there is an Iris/Aperture near the lamp as well as in the lens itself.
For the N5 (like the X5x00 range) there is only the Iris/Aperture in the lens and the internal Lamp iris is not there.


Is there any documentation that shows this clearly? I can't find this in the specification list on the JVC web site. I thought having this extra iris near the lamp was the reason the N7 has 2x the contrast figures compared to the N5.


I have an N5 on order. Just waiting for it to arrive to replace my x5000.

I've noticed this question worded very similarly from several posters in this thread. Just seems like such an odd question given the overall tenor of the thread, particularly when coming from a forum member of over 11 years.

Kevin

Just quietly went into my theater and checked the projector shelf, no sign of the elusive Canadian NX7. Have to check with my dealer to see if he has an estimated delivery date. Ordered back in October.

The contrast vs brightness comment is mostly aimed at the comparisons which keep being made to high nit TVs as being the reason I need mega nits for projection HDR. The eye is a contrast detector, not an absolute brightness measurement device, which is why discussions about the relative merits of displays need to bear in mind the viewing environment as the contrast it can detect depends on the environment. The reference environment for those HDR displays is 5-10 nits of background light in the room, which is a strong bias to the eye.

There is a load of information here which I won't pretend to fully understand.
https://www.telescope-optics.net/eye...y_response.htm

With regards to your system, I can't answer why you preferred one over the other without knowing more. It is possible that you're 30% darker system was just not bright enough above the black level of your room to give a satisfying image. You obviously do need to reach a certain level of brightness to start to saturate your eye to experience a "bright" image. It's also possible the calibration was different resulting in quite a different response to the same HDR imagery.

It doesn't matter at all...

Quote:
Originally Posted by kdog750
Does the NX7 blow away the RS640 overall in PQ?






Well I've been around even longer, and I've had extensive experience with JVCs, and I'll tell you of a certainty that the 640's 160:000:1 Native Contrast makes a huge difference...a difference only mitigated to a point by the NX7s' Native 4K and select other features.

I mean c'mon. Let's call it as it really is here! I'm an advocate for the NX-units (...except the 5'er...too much $$$ for too little performance...) but there is every bit as much of a good set of reasons to opt for a x790r (...or a x990r iffin' ya can find one...) if indeed not more than spending 2x more for what amounts to be at best somewhat questionable gains elsewhere.

There will come a time when JVC figures out how to deliver 2200 lumen and manage to reclaim the Contrast lost to maintaining that higher figure...and then things may well change. But until then, and while JVC opts to offer a PJ of the x790's ilk, the NX7 can be seen as falling short as far as Contrast and even image quality under certain 4K content presentations....at the price point it commands at present.

I was not intimating that it was obvious that this new line "blows away" the prior. In fact, just the opposite. I think it is clear that most overall improvements are incremental upon reaching a certain level, where I believe we currently reside.

Kevin

I wonder about the lack of the 2nd iris on the N5? If you configure your screen/projector for the best possible HDR won't SDR be way too bright? On the 7 and 9 you can use the 2nd iris to bring the SDR brightness down but you can't on the N5 right?

Entirely possible that I don't understand!

Both units were calibrated similarly by Chad B. I also think my experience is similar to what many front projection owners experience: more light is better with UHD even if that means making some contrast compromises to a point - (no, I would not want to go down to a DLP level @ ~2000:1 for more brightness!). But there is a reason why most people are using high lamp and iris wide. I also do not believe zoning has to do with the primary reason HDR can be so appealing on a flat panel. Sure, it definitely helps, but the appeal can also be apparent on less sophisticated flat panels.

I was not intimating that it was obvious that this new line "blows away" the prior. In fact, just the opposite. I think it is clear that most overall improvements are incremental upon reaching a certain level, where I believe we currently reside.

Kevin

For those of you considering use of the projector at or near 100% vertical shift.

After testing the RS3000 with zero vertical and horizontal shift, I was intrigued to try out my preferred mounting location, which is a projector box way up at 95% of vertical shift.

A friend of mine assisted with the install and we conducted a lot of A/B testing between 4K/8K first. Interestingly, his views match mine preferring 8K presentation although we did find some content where we both preferred 4K, In summary, 80% preference to 8K, no additional noise or instability noted. Both are very crisp and I didn’t want to lose too much of that going to the new location.

Well, after installing and setting up the lens adjustments we reran the material we had been watching. We both felt the picture quality was comparable at seating distance and even close up. It would take a trained eye at seating distance to notice the softness and I suspect many of us would fail a blind A/B test. After my friend left I threw up the QBF pattern and under close inspection it’s easy to identify some softness (2nd photo) but it’s a surprisingly consistent image and even focus in to the corners. One big advantage of the projector box location is the fan noise, which has abated considerably. I want to do some more extended viewing before finalizing the decision about location and whether I can live with the compromise. But for now, well done JVC on this amazing 100mm glass lens – very nice!

Now a couple of improvement suggestions if JVC is listening.

1) Please consider a motorized lens cover. I’ve been used to this in my Sony for years and never any issues, it protects one of the most important parts of the projector. We are never going to use the shipping cover on the JVC lens so it will just be left naked to the elements. Would be nice to see in a future model.
2) Lens memory. It’s great to have all the installation modes, but switching between them is very slow. Since we all like metrics, my seven-year-old Sony switches from 16:9 to Cinemascope in 11.9 seconds and from Cinemascope to 16:9 in 15.4 seconds. The RS3000 switches from 16:9 to Cinemascope and also Cinemascope to 16:9 in 39.2 seconds. I appreciate the JVC is adjusting more parameters but perhaps you can speed up those servomotors.

In summary though, I am liking the projector so far. I had a Sony 675ES dealer sample in my home theater for a while and this RS3000 is significantly better. I’m intrigued now to understand how much better the laser units from both Sony and JVC are compared to this.

Next step for me is professional calibration. Can anybody suggest a contact in the SW Florida area or point me in the right direction? Thanks.

CAUTION – NON-PROFESSIONAL PHOTOS ATTACHED. USE AT YOUR OWN DISCRETION.

I'm struggling to glean from this thread how the NX projectors compare to the older lineup, or even other projectors - which is pretty much the comparison I'd like to see given that I plan on purchasing a high end projector of some sort.

Even evidence of incremental improvements would be nice. Are we gaining overall picture quality while sacrificing some contrast, for example? How close does the NX9 get to the Z1, or the Sony 760ES?

Also waiting on the shootout at Cine4Home.de for the same reason