LG HU70LA 4K UHD Laser Smart Home Theater CineBeam Projector - Page 4 - AVS Forum | Home Theater Discussions And Reviews
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post #91 of 109 Old 11-08-2019, 01:50 AM
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What is the throw range of this model?
On the specifications, page, the only thing listed is:

Projection Image 100""@11.2ft(1.25x) ~ 8.9ft(1.0x)
Zoom x 1.25


Also from the manual, it's claimed that the throw range at 1.0x zoom is ~1.5x, and at 1.25x zoom is 1.21x throw range?

Usually in short throw specifications the lower distance (with the same size screen) is when the zoom is used, and the longer distance is with no zoom.
Is the website reversed?



The focus does not seem to be manual, but accessed via buttons on the device or the remove.

Capable of 120Hz at 1080p, but only 30Hz in 2160p on HDMI (PC). 60Hz on in 2160p on HDMI (DTV). What is the difference between PC and DTV?

Offset is 100%?
Does the remote act as an airmouse for the PJ menu?
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post #92 of 109 Old 11-08-2019, 04:27 AM
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Quote:
Originally Posted by chhanthony View Post

















Okay, just finish the measurement and calibration, all measurements were told by

Software: CalMAN 2019 Video Pro
Patterns Generator: VideoForge Pro
Spectrophotometer: X-Rite i1 Pro2
Colorimeter: Klein Instrument K10-A

in a light control room (not a batcave) with 126" (123" actual picture size) JK N4 1.0 gain white matt.

I have to say LG have a very good setting adjustment system, and it works very linear.
The most disappointed on this HU70LA is black level, as measured, 0% is 0.117 nit,
the 2nd disappointed is contrast, it only have 400:1 FULL ON/OFF contrast.
Although the peak brightness only have 45 nits but it looks actual as bright as my old HT1070 with 70 nits peak brightness.
The color saturation is wonderful and the Dynamic Tone Mapping works very very well.
Many unwatchable films on W2700 like The Dark Knight Rise, Meg, Sing and Lego Batman,
the skin tones and sunshine were looked yellowish but now become look neutral.
Dunkirk image looks very very very wow!!!!
Sharpness might not compare to W2700 but the resolution is better.
With Dynamic Tone Mapping and Dynamic Contrast might lost some black detail but both should keep it ON.
Even the black level is very so so, but all other performance are far beyond W2700.
I never seen these color in entry level DLP projectors.
Thanks mate, very pro touch! Ok so looks like BenQ W2700 is out of the game...should I go for this one or maybe evaluate the new Optoma UHD52ALV 3500-Lumen?
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post #93 of 109 Old 11-08-2019, 09:31 PM
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I beleive the through ratio is about 1.20:1

HU70LA uses an electric focus and it is easy to focus, the edge focus not perfect but did better than my HT3550.

Anthony Chan
AV Blog: http://www.avnewbie.com
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Panasonic DMP-UB900EBK, Egreat A5, Anthem AVM60, Krell KAV2250 X 2, Theater Amplifier Standard, M&K S-150 X 5, SS150 X 4, Martin Logan Descent-i and Thiel SS 2, SS2.2 and SI 1 Integrator, Benq HT1075, JK 126" Fixed Screen N4-FL/W1
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post #94 of 109 Old 11-09-2019, 01:54 AM
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I not yet see optoma UHD52 but this lamp base projector seems to have smaller color gumat with higher brightness.

Anthony Chan
AV Blog: http://www.avnewbie.com
System: 5.3.4
Panasonic DMP-UB900EBK, Egreat A5, Anthem AVM60, Krell KAV2250 X 2, Theater Amplifier Standard, M&K S-150 X 5, SS150 X 4, Martin Logan Descent-i and Thiel SS 2, SS2.2 and SI 1 Integrator, Benq HT1075, JK 126" Fixed Screen N4-FL/W1
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post #95 of 109 Old 11-09-2019, 11:27 AM
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Just tried with my Videoforge Pro, HU70LA accept 4096 * 2160.

Anthony Chan
AV Blog: http://www.avnewbie.com
System: 5.3.4
Panasonic DMP-UB900EBK, Egreat A5, Anthem AVM60, Krell KAV2250 X 2, Theater Amplifier Standard, M&K S-150 X 5, SS150 X 4, Martin Logan Descent-i and Thiel SS 2, SS2.2 and SI 1 Integrator, Benq HT1075, JK 126" Fixed Screen N4-FL/W1
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post #96 of 109 Old 11-09-2019, 06:44 PM
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@chhanthony blacks are really so poor?...coming from an Oled and being my first projector, might have a heart attack :P
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post #97 of 109 Old 11-09-2019, 10:18 PM
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Quote:
Originally Posted by Gae80uk View Post
@chhanthony blacks are really so poor?...coming from an Oled and being my first projector, might have a heart attack :P
I beleive even JVC cant compare to OLED on black level performance.

And yes HU70LA black level is not good, but only appearing when low light scene, like ch.2 of Black Panther, but 90% time HU70LA can give you very good color saturation and HDR feel.

A little update, after trying on/off Dynamic contrast a few days, I will recommend turn it off.

Anthony Chan
AV Blog: http://www.avnewbie.com
System: 5.3.4
Panasonic DMP-UB900EBK, Egreat A5, Anthem AVM60, Krell KAV2250 X 2, Theater Amplifier Standard, M&K S-150 X 5, SS150 X 4, Martin Logan Descent-i and Thiel SS 2, SS2.2 and SI 1 Integrator, Benq HT1075, JK 126" Fixed Screen N4-FL/W1
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post #98 of 109 Old 11-10-2019, 12:31 AM
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Just found out if the movie APL is too low like black panther, Spectre just turn off the Dynamic Tone Mapping the black level and brightness will improvea lot! Black level still not so good but acceptable to me.

Edit, actually except the movie's APL too high, you may leave the dynamic tone mapping OFF.

Anthony Chan
AV Blog: http://www.avnewbie.com
System: 5.3.4
Panasonic DMP-UB900EBK, Egreat A5, Anthem AVM60, Krell KAV2250 X 2, Theater Amplifier Standard, M&K S-150 X 5, SS150 X 4, Martin Logan Descent-i and Thiel SS 2, SS2.2 and SI 1 Integrator, Benq HT1075, JK 126" Fixed Screen N4-FL/W1

Last edited by chhanthony; 11-10-2019 at 03:45 AM.
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post #99 of 109 Old 11-10-2019, 01:18 AM
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@chhanthony thanks for the heads up! So if you had to go for your first projector (like myself!) would you go for this one or would suggest an alternative to check? Counting on your great neutrality here
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post #100 of 109 Old 11-10-2019, 07:20 PM
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Quote:
Originally Posted by Gae80uk View Post
@chhanthony thanks for the heads up! So if you had to go for your first projector (like myself!) would you go for this one or would suggest an alternative to check? Counting on your great neutrality here
Gae80uk

I believe only the black level is so so, all other performance are out of my expectation.

Anthony Chan
AV Blog: http://www.avnewbie.com
System: 5.3.4
Panasonic DMP-UB900EBK, Egreat A5, Anthem AVM60, Krell KAV2250 X 2, Theater Amplifier Standard, M&K S-150 X 5, SS150 X 4, Martin Logan Descent-i and Thiel SS 2, SS2.2 and SI 1 Integrator, Benq HT1075, JK 126" Fixed Screen N4-FL/W1
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post #101 of 109 Old 11-11-2019, 05:25 AM
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Quote:
Originally Posted by chhanthony View Post
Gae80uk

I believe only the black level is so so, all other performance are out of my expectation.
Thanks mate, appreciated. What are the top 3 features you have been surprised about?
Do you reckon putting a 0.8 grey screen would improve overall black level (but maybe pushing down the overall brightness?)
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post #102 of 109 Old 11-11-2019, 09:05 PM
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Quote:
Originally Posted by Gae80uk View Post
Thanks mate, appreciated. What are the top 3 features you have been surprised about?
Do you reckon putting a 0.8 grey screen would improve overall black level (but maybe pushing down the overall brightness?)
I have been surprised by it's HDR handing (even with/without Dynamic Tone Mapping), color saturation, adjustment menu.
I believe using a grey screen will improve overall black level a bit, about the brightness that is depend on your screen size.

Anthony Chan
AV Blog: http://www.avnewbie.com
System: 5.3.4
Panasonic DMP-UB900EBK, Egreat A5, Anthem AVM60, Krell KAV2250 X 2, Theater Amplifier Standard, M&K S-150 X 5, SS150 X 4, Martin Logan Descent-i and Thiel SS 2, SS2.2 and SI 1 Integrator, Benq HT1075, JK 126" Fixed Screen N4-FL/W1
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post #103 of 109 Old 11-12-2019, 03:21 AM
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Is the DMD XPR pixelshifter noise, as some of the optoma / benq ? Overal on the paper and reading other first impressions it seems that this pj is silent in " eco" mode?
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post #104 of 109 Old 11-13-2019, 05:22 AM
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Watching this thread with great interest. Would be my first projector and seems to be the first viable wifi 4K option due in part to the baked-in apps. I suspect it might be worth waiting until next year however, as this may have set a new bar in terms of feature-set and we may see a slew of competition right behind it. Just a hunch; I'm no industry expert. Having kept a lazy eye on the prices over the past couple of years, I do think the 6k price tag on the UST version (and this one) will drop considerably in the coming year, but what do I know.
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post #105 of 109 Old 11-15-2019, 09:28 PM
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LG HU80KA 4K is listed for 1800 at buydig, while this is a dollar less, anyone please explain what is difference between both and what would be a better purchase, i am upgrading from pf1500w so not sure which one is better, both are lg and both are 4k with diefferent light modules.
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post #106 of 109 Old 11-16-2019, 08:03 AM
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Quote:
Originally Posted by realperson View Post
LG HU80KA 4K is listed for 1800 at buydig, while this is a dollar less, anyone please explain what is difference between both and what would be a better purchase, i am upgrading from pf1500w so not sure which one is better, both are lg and both are 4k with diefferent light modules.
Once you install I would be interested in a detailed comparison to the PF1500.
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post #107 of 109 Old 11-16-2019, 05:16 PM
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Question

The real question for me is can someone do a lg pf1500 vs lg hu70la tests comparisons especially on contrast black levels?Please Please Please with a cherry on top?
Really begging here Please help ?

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 #108 of 109 Old Yesterday, 02:05 AM
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LED projector Lumen / Brightness ratings

Quote:
Originally Posted by ryudoadema View Post
Is the 1500 ANSI lumens including the perceived increase in brightness from laser or LED? Forget which one. 1500 plus the perceived increase should be enough for my needs, but 1500 after would probably nix it for me.

Edit: Found it- "The brightness is based on the perceived brightness equivalent to the brightness of lamp projector". No mention of 3d anyway. I don't think LG are fans.

There's some critical information that is usually ignored (or just isn't known) when comparing "lamp based" lumens to "LED based" lumens.

MH lamps are broad spectrum light sources, so you NEVER get "pure" Red, Green, or Blue light creating your image. Even with the R/G/B (and sometimes Y) filters, you will still get MUCH broader spectrum of light hitting the DLP or LCD than is desired for pure spectral mixing.

This is not the case with LEDs... the spectrum from projection LEDs is very narrow, so when the image calls for a 23.54% Red, 71.83% Blue, 32.11% Green blend to create a given on-screen color, that is what you get.

With MH lamps, even short-term aging causes spectral shifting, so the color accuracy you may get with a new factory supplied lamp - is not the color accuracy you will always have... or indeed, probably never again.

Often, LED based projectors employ individual LED output monitoring (during power-on self-test) to correct for any minor output variances as they age... which is simple and cheap because you only test one LED at a time, with a single common light sensor.

Now, we were talking about Lamp Lumens versus LED Lumens...

Same thing applies... MH lamp based projectors spit out a lot more light than is desired, so when measured, the result is higher because of the "junk" that comes out the lens that's not desired. This is also why the projectors "white image brightness" is so much higher than the "color image brightness" rating... when you use the color wheel "clear" (white) segment, you not only get the visible spectrum, but everything else the MH lamp is spewing all over your screen.

With LEDs, the color brightness is nearly the same as the white brightness... there isn't any other light spectrum available to throw (though they do allow all the LEDs to run bright, without regard to "white accuracy"). So when you have a measured 700 lumen color image from an LED projector, you are getting 700 lumens of ACCURATE blended colors, which takes a lamp-based projector almost twice the lumens to equal the image quality when viewed by the human eye... color saturation is far easier to get with LED's.
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post #109 of 109 Old Yesterday, 09:28 AM
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@rtchinn thanks for the useful explanation! So 1500 LED lumens equal 3000 lamp lumens in terms of...brightness and colours?
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