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post #151 of 213 Old 12-02-2019, 11:20 AM
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post #152 of 213 Old 12-02-2019, 11:22 AM
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post #153 of 213 Old 12-03-2019, 07:45 AM
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@kraine looks like the review is coming up! Happy with the below results Greg?
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post #154 of 213 Old 12-03-2019, 09:29 AM
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Tomorrow the full review will be online.
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post #155 of 213 Old 12-03-2019, 09:30 AM
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I liked that projector so much that I bought myself one.
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post #156 of 213 Old 12-03-2019, 10:18 AM
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@kraine that says a lot! Aiming to collect mine next week in CH @Digit ec Game on!
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post #157 of 213 Old 12-03-2019, 11:58 AM
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Full review is now online, in french and in English :


https://www.passionhomecinema.fr/blo...is-de-gregory/


And big thanks to Anthony
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post #158 of 213 Old 12-03-2019, 12:43 PM
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Quote:
Originally Posted by kraine View Post
Full review is now online, in french and in English :


https://www.passionhomecinema.fr/blo...is-de-gregory/


And big thanks to Anthony
Kraine,

Haven't read your review yet but Proj Ctl was very down on black level and contrast. How did you solve this? I bought and returned two of these .47 projectors, the UHD51A and the UHL55, because this was such a severe problem. How did you overcome that?

Jack
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post #159 of 213 Old 12-03-2019, 02:38 PM
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Red face

Same question here as how did Kraine improve the projectors black level ?

Oh i see now theres an expert mode where one can fiddle till satisfaction with results.


K done deal buying this projector in a few months once my wallet recuperates from Christmas at Disneyland.

Denon 4k avr, diy l c r surround Behringer nx3000 dsp Fi car audio ib318 v2 310 cubic foot concrete ib lg pf 1500 projector.steren projector mount at diy 135 inch screen triple 15 boss build .
Pending buy fourty 6 inch drivers for some new mains new 4k lg hu70la projector 1240 cubic foot ib for 16 fi car audio ib318 v2 subwoofers 4 nx3000 dsp

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post #160 of 213 Old 12-03-2019, 08:54 PM
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Quote:
Originally Posted by kraine View Post
Full review is now online, in french and in English :


https://www.passionhomecinema.fr/blo...is-de-gregory/


And big thanks to Anthony
My pleasure!

Very professional review, thank you very much!
Have you try set the Color Temp to Warm?
I got very linear result and less than 1 dE on grayscale with Color Temp: Warm.

On the other hand, could you share what ARL screen are you using? I am looking for ARL screen to replace my pure white JK screen.

Thanks again!

Anthony Chan
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post #161 of 213 Old 12-03-2019, 10:45 PM
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I use 3: Lusoscreen Dark Star 0.8, Vividstorm tensionned floor screen 0.6, and Cine-screen 1.5 frame screen.

I also tried the warm color temperature but on the 2 HU70 I have at home I have a red too high and I am well above 3 for the deltaE.

Have you measured the different levels of dynamic contrast? In my case, none of them change the measurements.
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post #162 of 213 Old 12-03-2019, 11:07 PM
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Quote:
Originally Posted by kraine View Post
I use 3: Lusoscreen Dark Star 0.8, Vividstorm tensionned floor screen 0.6, and Cine-screen 1.5 frame screen.

I also tried the warm color temperature but on the 2 HU70 I have at home I have a red too high and I am well above 3 for the deltaE.

Have you measured the different levels of dynamic contrast? In my case, none of them change the measurements.
Hi Kraine,

Which screen of the above three you will recommend for HU70? Are they all UST ALR screen?

So my setting is deceased -33 in R gain...hahaha, I haven't try Color Temp: MID yet, may be less reddish.

I only measure contrast in Expert Dark Room mode without dynamic contrast ON,
playing around 3 dynamic contrast setting, I felt that it only boost some high light but not boost the peak white and enhanced the black.

Anthony Chan
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post #163 of 213 Old 12-04-2019, 12:31 AM
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I don't get it..

Would a "normal" white 1.0 gain screen work for the the LG?
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post #164 of 213 Old 12-04-2019, 12:34 AM
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Quote:
Originally Posted by kraine View Post
Full review is now online, in french and in English :
https://www.passionhomecinema.fr/blo...is-de-gregory/
There is information or what do you think about the lens, glass or plastic lenses, or a plastic / glass hybrid? How do lenses react to temperature changes, does sharpness change with heating of the lenses in the lens?
If not a secret, what is your calibration device? How do you select the correction of the device for color-shifted RGB diodes to get the correct colors in measurements? Does a device with a Сalman program see colors differently than HCFR?
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post #165 of 213 Old 12-04-2019, 08:23 PM
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Quote:
Originally Posted by JackB View Post
Kraine,

Haven't read your review yet but Proj Ctl was very down on black level and contrast. How did you solve this? I bought and returned two of these .47 projectors, the UHD51A and the UHL55, because this was such a severe problem. How did you overcome that?
In this price range only an active iris will help DLP's.

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Originally Posted by chhanthony View Post
Hi Kraine,

Which screen of the above three you will recommend for HU70? Are they all UST ALR screen?

So my setting is deceased -33 in R gain...hahaha, I haven't try Color Temp: MID yet, may be less reddish.

I only measure contrast in Expert Dark Room mode without dynamic contrast ON,
playing around 3 dynamic contrast setting, I felt that it only boost some high light but not boost the peak white and enhanced the black.

UST ALR's are different from regular throw ALR's.

https://www.soundandvision.com/conte...g-screens-work
https://www.soundandvision.com/conte...ection-screens


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I don't get it..

Would a "normal" white 1.0 gain screen work for the the LG?

Yes.
ALR's have some benefits and disadvantages.
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post #166 of 213 Old 12-04-2019, 09:02 PM
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Yes, I am looking for 1.2 throw ratio ALR for HU70LA.

Anthony Chan
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post #167 of 213 Old 12-04-2019, 10:37 PM
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Quote:
Originally Posted by JackB View Post
It's picture quality is probably better than most entry 4K dlps because it has tone mapping in the firmware. Remember, all of these have poor black level/contrast compared to the HD dlps. For some technical reason the pixel shifting degrades the contrast. That being said, Kraine, on his French web site, has said that there are two 4K shifting dlps that have much better blacks. One is a Xaomi (https://www.passionhomecinema.fr/blo...is-de-gregory/) and I forget what the other one is. Maybe Kraine is following this thread and could comment.
"For some technical reason the pixel shifting degrades the contrast"


It's simple... the pixels are shifted 50%, so every pixel overlaps all of its neighbors. I'm still trying to understand why people don't get it... you start out with a 1080p pixel size that's FOUR TIMES as big as the 4K pixels they are trying to generate... you simply can not "turn on" a quarter of the large 1080p pixels.


Roll that around in your brain a while... consider how impossible it is to actually generate a "true" 4K image from pixels that are 4x too big, and are only being shifted 50% offset vertical and 50% horizontal. The ONLY time you will ever get a full "dark" 4k pseudo pixel is if every pixel related to it (by the same 1080p parent pixel) is also "100% dark".
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post #168 of 213 Old 12-05-2019, 12:59 AM
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Originally Posted by chhanthony View Post
Yes, I am looking for 1.2 throw ratio ALR for HU70LA.
Did you have a brand in mind?

Most ALR's have a minimum throw of 1.5x, and at the throw it's likely to get some artifacts like hotspot and sparkles.
Something closer to 2.0x would be better, although no ALR can eliminate 100% of artifacts.

If you have a room with white/colored walls it's very recommended to treat them, and get a projector with better black level.
If the room cannot be treated, a matte grey screen or a paint mix can help with improving the blacks.

How large is the screen?

UST ALR's with the exception of Fresnel type, don't have hotspot/sparkle artifacts.



All this being said, if there is too much ambient light in the room, aka the setup is some kind of lights on viewing, no projector and screen combo can provide a satisfactory image, and a TV would be better suited.
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post #169 of 213 Old 12-05-2019, 09:08 AM
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At first I plan to bluy SI Black Diamond or DNP, but both of them need 1.5 throw ratio at least.

I am using 126" white screen now and using max zoom (1.2) throw ratio.

I would say my living not the bat cave , but have quite good light control.

I wish to use ALR screen to improve the black level, but I am not sure will ALR screen will work fine in my place with 1.2 throw ratio which is in the middle of UST and normal ALR scree.

May be I have to consider normal grey screen.

My problem is screen too big but the distance is to short!

So that my choice on projector is very limited, luckily I found this HU70LA, all its performances is very acceptable to me, except the black level and contrast which I wish to improve.

Anthony Chan
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post #170 of 213 Old 12-05-2019, 10:30 PM
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Quote:
Originally Posted by chhanthony View Post
At first I plan to bluy SI Black Diamond or DNP, but both of them need 1.5 throw ratio at least.

I am using 126" white screen now and using max zoom (1.2) throw ratio.

I would say my living not the bat cave , but have quite good light control.

I wish to use ALR screen to improve the black level, but I am not sure will ALR screen will work fine in my place with 1.2 throw ratio which is in the middle of UST and normal ALR scree.

May be I have to consider normal grey screen.

My problem is screen too big but the distance is to short!

So that my choice on projector is very limited, luckily I found this HU70LA, all its performances is very acceptable to me, except the black level and contrast which I wish to improve.
Treating the walls for reflections is one of the best upgrades that can be done projector wise.
And cheaper versus getting an expensive ALR screen, which can have artifacts.

This what a Cinegrey 3D ALR looks like on a 1.15x throw. The hotspot is even present at 1.5x.
https://www.avsforum.com/forum/23-sc...l#post58568560


There are no intermediary ALR's between regular ALR's and UST ALR's.
This type of ALR is called angular, and it does exactly what is says, it reflects the projector beam at an equal angle.
Think of this surface like a mirror. If the projector is too close the reflection will hit the floor.

It's also why they have to be further away. The part of the projected image that is at the periphery will also be reflected at an equal angle, somewhere on the walls. The further away it is, the more the picture edge reflection will be towards the viewer.

Read this post but also the entire thread on ALR/grey/white screens:
https://www.avsforum.com/forum/23-sc...l#post42628522

The sound and vision articles linked above are a worthwhile read for ALR screens. In them another type of ALR is mentioned, retro reflective, which send the image to the same place where it originated from. These screens don't have hotspots, but are harder to find and more expensive.


Why the HU70LA?
There are other brighter options which would have worked better with a grey screen for example.

Last edited by noob00224; 12-05-2019 at 10:33 PM.
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post #171 of 213 Old 12-05-2019, 10:56 PM
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Quote:
Originally Posted by noob00224 View Post
Quote:
Originally Posted by chhanthony View Post
At first I plan to bluy SI Black Diamond or DNP, but both of them need 1.5 throw ratio at least.

I am using 126" white screen now and using max zoom (1.2) throw ratio.

I would say my living not the bat cave , but have quite good light control.

I wish to use ALR screen to improve the black level, but I am not sure will ALR screen will work fine in my place with 1.2 throw ratio which is in the middle of UST and normal ALR scree.

May be I have to consider normal grey screen.

My problem is screen too big but the distance is to short!

So that my choice on projector is very limited, luckily I found this HU70LA, all its performances is very acceptable to me, except the black level and contrast which I wish to improve.
Treating the walls for reflections is one of the best upgrades that can be done projector wise.
And cheaper versus getting an expensive ALR screen, which can have artifacts.

This what a Cinegrey 3D ALR looks like on a 1.15x throw. The hotspot is even present at 1.5x.
https://www.avsforum.com/forum/23-sc...l#post58568560


There are no intermediary ALR's between regular ALR's and UST ALR's.
This type of ALR is called angular, and it does exactly what is says, it reflects the projector beam at an equal angle.
Think of this surface like a mirror. If the projector is too close the reflection will hit the floor.

It's also why they have to be further away. The part of the projected image that is at the periphery will also be reflected at an equal angle, somewhere on the walls. The further away it is, the more the picture edge reflection will be towards the viewer.

Read this post but also the entire thread on ALR/grey/white screens:
https://www.avsforum.com/forum/23-sc...l#post42628522


Why the HU70LA?
There are other brighter options which would have worked better with a grey screen for example.
As I mentioned above, my living is 12' wall to wall and I am using 126", so my choice is very limited, if I willing to reduce the screen size 100", I can use JVC N7 or BenQ LK990.But I choosed stay with a bigger screen.

I used to have BenQ HT1075, HT3550, LK990 and tested Optoma UHL55 UHD51 at the same place. I also calibrated many UHZ65, Sony VW760ES, JVC X7900.

I would say execpt the contrast and black level, this HU70LA surprised me a lot compare to those projectors, including its Dynamic Tone Mapping, the vivid color both in SDR or HDR, very linear white balance, very details color adjustment system, it might not perfect, but it is the best choice for me at this moment.

Anthony Chan
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post #172 of 213 Old 12-05-2019, 11:12 PM
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Quote:
Originally Posted by chhanthony View Post
As I mentioned above, my living is 12' wall to wall and I am using 126", so my choice is very limited, if I willing to reduce the screen size 100", I can use JVC N7 or BenQ LK990.But I choosed stay with a bigger screen.

I used to have BenQ HT1075, HT3550, LK990 and tested Optoma UHL55 UHD51 at the same place. I also calibrated many UHZ65, Sony VW760ES, JVC X7900.

I would say execpt the contrast and black level, this HU70LA surprised me a lot compare to those projectors, including its Dynamic Tone Mapping, the vivid color both in SDR or HDR, very linear white balance, very details color adjustment system, it might not perfect, but it is the best choice for me at this moment.
Some would say contrast is the most important aspect of a picture, but everyone likes different things.

I would have thought the HT3550 would have been better, the iris apparently helps with the black level.
In this throw range options are very limited.

If it's possible, a good option for screen are paint mixes.
Silver Fire seems to be popular and can be customized.
https://www.avsforum.com/forum/110-diy-screen-section/
https://www.avsforum.com/forum/110-d...-2-thread.html

LE: an explanation on Silver Fire's properties:
https://www.avsforum.com/forum/68-di...l#post58790176

A matte grey screen might dim the image too much.

Last edited by noob00224; 12-05-2019 at 11:16 PM.
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post #173 of 213 Old 12-05-2019, 11:30 PM
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MHO, overall performance, HU70LA is far better than HT3550.

Now considering Stewart Greyhawk G4, it requires 1.3 throw ratio, dont know whether the hot spot can be acceptable.

Anthony Chan
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Last edited by chhanthony; 12-06-2019 at 12:11 AM.
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post #174 of 213 Old 12-06-2019, 12:52 AM
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Totally agree with Anthony, I chose to keep the HU70LS at home against other much more expensive projectors.
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post #175 of 213 Old 12-06-2019, 12:56 AM
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There is information or what do you think about the lens, glass or plastic lenses, or a plastic / glass hybrid? How do lenses react to temperature changes, does sharpness change with heating of the lenses in the lens?
My probe is a pro version with 2 specials measurements mode for LED projectors (for lens and screen measurements).


LG has made a very good job on the lens, wich doesn't loose focus during the viewing and the temperatures changes (it's not an Xgimi ).
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post #176 of 213 Old 12-06-2019, 01:13 AM
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Totally agree with Anthony, I chose to keep the HU70LS at home against other much more expensive projectors.
But are you happy with the lack of good blacks?
Maybe calibrator's eyes are more attuned to the details Anthony was mentioning, regular users might not notice.
Depends on the person and requirements I guess.
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post #177 of 213 Old 12-06-2019, 01:21 AM
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The blacks of the LG are not a concern for me, thanks to my technical screen. Then the other qualities of the projector allow me to get everything I expect from a projector: rich colors, precise image and fluidity. The competition has less than 5000€ and can't provide what this little LG delivers.
You have to add Smart'TV capabilities and a long-lasting light source to understand why I won't change my new LG for a BenQ W5700, a Sony VW270 or a JVC N5.
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post #178 of 213 Old 12-06-2019, 02:18 AM
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But are you happy with the lack of good blacks?
Maybe calibrator's eyes are more attuned to the details Anthony was mentioning, regular users might not notice.
Depends on the person and requirements I guess.
Actually, you may only notice the poor contrast/black level when the scene's APL is very low.

May be lack of lens shift, no 3D, no HLG are the issue for some user, but I don't need those features, so it isn't bothering me.

I even can't use the TV tuner as I live in HK.

HU70 might not a very brilliant projector, but at least considerable in this price range, it project the picture quality far from it's out look.

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post #179 of 213 Old 12-06-2019, 09:46 AM
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Originally Posted by kraine View Post
Totally agree with Anthony, I chose to keep the HU70LS at home against other much more expensive projectors.
I wasn't even considering this projector until reading Kraine's review and comments like this definitely have me intrigued! I have a light controlled theater room so a high contrast projector may be better, but I do like a bright and sharp picture and have owned 3 consecutive DLP projectors (Benq w5000, w6000, and now Vivitek HK2299). And, my room is small and this is one of the few projectors that would allow me to stretch to a 120" screen instead of my 100" one.
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post #180 of 213 Old 12-06-2019, 09:53 AM
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Originally Posted by chhanthony View Post
As I mentioned above, my living is 12' wall to wall and I am using 126", so my choice is very limited, if I willing to reduce the screen size 100", I can use JVC N7 or BenQ LK990.But I choosed stay with a bigger screen.

I used to have BenQ HT1075, HT3550, LK990 and tested Optoma UHL55 UHD51 at the same place. I also calibrated many UHZ65, Sony VW760ES, JVC X7900.

I would say execpt the contrast and black level, this HU70LA surprised me a lot compare to those projectors, including its Dynamic Tone Mapping, the vivid color both in SDR or HDR, very linear white balance, very details color adjustment system, it might not perfect, but it is the best choice for me at this moment.
Anthony, really appreciate your contributions to the thread on your experience with this projector and others. You mentioned several other projectors that I would consider: LK990/LK970 (refurb), UHZ65, JVC 790 (refurb). From a pure picture quality standpoint, how does the LG HU70 stack up? I know it has to have some shortcomings to them because of the massive price differential. I roughly spend my time equally among movies/streaming/sports/4k gaming. Thanks!
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