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post #451 of 861 Old 05-20-2020, 12:08 PM
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Originally Posted by Mike Garrett View Post
Calibrators like Kris Deering that have gone back to check calibration on laser projectors have reported that laser projectors do drift and need additional calibrations.



Safe to assume the same is true of LEDs?
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post #452 of 861 Old 05-20-2020, 12:15 PM
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Safe to assume the same is true of LEDs?
Yes.
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post #453 of 861 Old 05-20-2020, 01:36 PM - Thread Starter
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The sequential rgb led drift makes sense, the leds are cycled at different lengths, so say for instance the green led is likely to lose luminance faster than blue.

The laser phosphor drift is interesting. Losing luminance over time makes sense, but the actual spectrum output of the light source changes over time as well?
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post #454 of 861 Old 05-20-2020, 05:26 PM
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Okay Team, I'm at a stand still....which 1 Sim2 Mico 50 or Runco Q750i?

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post #455 of 861 Old 05-20-2020, 05:45 PM - Thread Starter
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Okay Team, I'm at a stand still....which 1 Sim2 Mico 50 or Runco Q750i?
Mico 50 for sure, in every way a superior projector.
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post #456 of 861 Old 05-20-2020, 06:15 PM
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Mico 50 for sure, in every way a superior projector.
Thanks......it's going to go tomorrow

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post #457 of 861 Old 05-20-2020, 10:32 PM
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I suggest trying the EZCOO 1:2 splitter/downscaler. The EZCOO will take your AVR output and send one line with 4K to the JVC. Passthrough with no effect. Port 2 downscales the 4K to 1080P for the Vango. You'll find the picture to be much closer in quality, mostly resolution, to 4K than what you are seeing today. Only $30 bucks. Great device.
Just finished playing around with it for the night. Works great. Great heads up. For $30, it's a still for us dual projector owners.
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post #458 of 861 Old 05-21-2020, 04:10 AM
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Originally Posted by blee0120 View Post
Just finished playing around with it for the night. Works great. Great heads up. For $30, it's a still for us dual projector owners.
How much does down converting to 1080p impact the PQ?

tony4k
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post #459 of 861 Old 05-21-2020, 08:18 AM
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How much does down converting to 1080p impact the PQ?
It didn't even look like it made an impact. I have not evaluated it in detail yet, but from first impression it looks great. I had the Hdfury Vertex prior as my splitter for my projectors and that provided excellent quality. I looked at some HDR material with MadVR and I was pleased with the PQ. I'll dive in more this weekend but for a $30 device, I can't complain.
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post #460 of 861 Old 05-21-2020, 03:32 PM
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Originally Posted by blee0120 View Post
It didn't even look like it made an impact. I have not evaluated it in detail yet, but from first impression it looks great. I had the Hdfury Vertex prior as my splitter for my projectors and that provided excellent quality. I looked at some HDR material with MadVR and I was pleased with the PQ. I'll dive in more this weekend but for a $30 device, I can't complain.
A may be crazy, but I'm going to try one to see what it would do for me in back of my lumagen radiance xd.

tony4k

Last edited by tbase1; 05-21-2020 at 03:46 PM.
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post #461 of 861 Old 05-21-2020, 03:34 PM
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A may be crazy, but I'm going to try one to see what it would do for me in front of my lumagen radiance xd.
For $30, it's worth the look. I'm going to look more at it this weekend.
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post #462 of 861 Old 05-21-2020, 04:57 PM
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What projector are you running with it? I'm going to keep my Sim2 mico 50 over the Q750i.
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post #463 of 861 Old 05-21-2020, 06:15 PM
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Those who are going to try the EZCOO won't be sorry. I've posted several time in other threads, and maybe this one, that you can follow an opposite version of GIGO(Garbage in Garbage out). I call it FIFO; not First in First out, but Finest in Finest out. If you take a high resolution source, finest, and do a good job of reducing it to a lower resolution, then you will get a better image. So there are two factors entering into the equation. One is the quality of the 4K. Was it original like on a UHD BR disk, a UHD video by the streaming hosts, Netflix, Prime, etc., or a 1080P upscaled by the streaming device. So the 4K quality of the input is important, Secondly, how well does the EZCOO do when downscaling. To my eyes it's great. Of course, as we on this thread know, we are using the best projectors to take advantage of this situation.
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post #464 of 861 Old 05-21-2020, 07:11 PM
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That being said Jack.........is it better to go 4k in and 1080p out or pass through 1080p ? I've always been of the mindset of keeping things native from the source direct to the projector, and 7.1 analog to the receiver. If the EZCOO will enable my Sim2 Mico 50 to resolve the PQ of 4k downconverted to 1080p with a little bump over the 1080p version count me in.

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post #465 of 861 Old 05-21-2020, 10:27 PM
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Originally Posted by tbase1 View Post
Okay Team, I'm at a stand still....which 1 Sim2 Mico 50 or Runco Q750i?
Wait... you have both of these, and you're asking this thread?
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post #466 of 861 Old 05-22-2020, 12:47 AM
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Wait... you have both of these, and you're asking this thread?
yes if you have both why not try them and see for urself which one u would prefer ?

JVC DLA X590/RS440 / BenQ LK970
madVR HTPC with 1080ti / Lumagen radiance pro 4242
Arendal 1723 LCR Monitors / M&K S150 Surrounds in 5.1.4 atmos setup / Yamaha AX2050 AVR / MiniDSP88BM audio processor/ beta3 6 channels Amp .
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post #467 of 861 Old 05-22-2020, 01:51 AM
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Nothing wrong with getting a opinion from members that have experience both. Another reason is I'm out of town on business, and I don't want to pay to get it calibrated to do a shoot out if its going to lose.

Last edited by tbase1; 05-22-2020 at 04:03 AM.
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post #468 of 861 Old 05-22-2020, 07:16 AM
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Originally Posted by tbase1 View Post
That being said Jack.........is it better to go 4k in and 1080p out or pass through 1080p ? I've always been of the mindset of keeping things native from the source direct to the projector, and 7.1 analog to the receiver. If the EZCOO will enable my Sim2 Mico 50 to resolve the PQ of 4k downconverted to 1080p with a little bump over the 1080p version count me in.
I guess it comes down to trial and error. With my HT setup the Directv is going in as 1080P so it is native. The EZCOO doesn't do anything but pass it thru. With the Shield TV tube I have it set to 4K SDR 4.2.0 out. I do this because the Shield is so good at scaling 1080P to 4K. It's SDR because my 1080P projectors don't like HDR because it tends to wash out the color. My sacrifice under this scenario, unless I change the Shield setting, is that the JVC doesn't receive the HDR signal. I'm living with that because I haven't liked the darker HDR picture. Once I have it calibrated I suspect that will change.

The Denon is set to do nothing to the stream except play the sound and be the video distributor.

Edit: On a side note, it would be fantastic if nVidea added an external input like the latest Oppo players, so its AI scaler could be used for my Directv.

Jack

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post #469 of 861 Old 05-22-2020, 11:00 AM
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I guess it comes down to trial and error. With my HT setup the Directv is going in as 1080P so it is native. The EZCOO doesn't do anything but pass it thru. With the Shield TV tube I have it set to 4K SDR 4.2.0 out. I do this because the Shield is so good at scaling 1080P to 4K. It's SDR because my 1080P projectors don't like HDR because it tends to wash out the color. My sacrifice under this scenario, unless I change the Shield setting, is that the JVC doesn't receive the HDR signal. I'm living with that because I haven't liked the darker HDR picture. Once I have it calibrated I suspect that will change.

The Denon is set to do nothing to the stream except play the sound and be the video distributor.

Edit: On a side note, it would be fantastic if nVidea added an external input like the latest Oppo players, so its AI scaler could be used for my Directv.
For my setup, I'm using my JVC RS2000/N7 and Digital Projection M-Vision Cine 260HB. I moved my Runco Q750 downstairs on my 100in 16:9 2.2 gain Stellar White Screen with a Darbee. Runco looks fabulous on this screen. With the splitter, I tried both native 1080p with my DLP and down conversion. Not a noticable difference but HDR did look well with MadVR. I haven't tried my JVC yet, but if its passthrough, it should not be a problem. I'm going to probably leave it to down convert 4k to 1080p so that it can be left alone without me switching back and forth
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post #470 of 861 Old 05-22-2020, 11:33 AM
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Originally Posted by blee0120 View Post
For my setup, I'm using my JVC RS2000/N7 and Digital Projection M-Vision Cine 260HB. I moved my Runco Q750 downstairs on my 100in 16:9 2.2 gain Stellar White Screen with a Darbee. Runco looks fabulous on this screen. With the splitter, I tried both native 1080p with my DLP and down conversion. Not a noticable difference but HDR did look well with MadVR. I haven't tried my JVC yet, but if its passthrough, it should not be a problem. I'm going to probably leave it to down convert 4k to 1080p so that it can be left alone without me switching back and forth
That's the beauty. For your JVC/DP situation it's perfect. If you are using the MadVR in that setup you may not have the HDR issue.

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post #471 of 861 Old 05-22-2020, 11:55 AM
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For my setup, I'm using my JVC RS2000/N7 and Digital Projection M-Vision Cine 260HB. I moved my Runco Q750 downstairs on my 100in 16:9 2.2 gain Stellar White Screen with a Darbee. Runco looks fabulous on this screen. With the splitter, I tried both native 1080p with my DLP and down conversion. Not a noticable difference but HDR did look well with MadVR. I haven't tried my JVC yet, but if its passthrough, it should not be a problem. I'm going to probably leave it to down convert 4k to 1080p so that it can be left alone without me switching back and forth
Blee,
How do you like your stellar screen? I was thinking about getting one to pair with my 11s2. Any hotspotting, extreme viewing cone problems, fluctuation in contrast? Thanks
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post #472 of 861 Old 05-22-2020, 12:09 PM
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That's the beauty. For your JVC/DP situation it's perfect. If you are using the MadVR in that setup you may not have the HDR issue.
This is probably a must for all dual projector owners, thanks for the suggestion 👍
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post #473 of 861 Old 05-22-2020, 12:19 PM
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Blee,
How do you like your stellar screen? I was thinking about getting one to pair with my 11s2. Any hotspotting, extreme viewing cone problems, fluctuation in contrast? Thanks
Works great with these DLP LED projectors because of the lower light output. I'm at a longer throw, so hotspoting isn't a concern. Helps a lot with HDR and no extreme viewing cone as well. I can definitely tell a difference with brightness moving from the Stellar 2.2 with the Runco Q750 and the Digital Projection M-Vision Cine 260HB on my unit gain screen. Both are 100in 16:9 and the Runco Q750 looks noticeably brighter. I did turn off BC on the Digital Projection DLP because of how inaccurate it was for me to calibrate.
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post #474 of 861 Old 05-22-2020, 12:23 PM - Thread Starter
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I did turn off BC on the Digital Projection DLP because of how inaccurate it was for me to calibrate.
With the wide gamut LED projectors I believe you can get increased calibrated brightness at bt709 with brilliant color/overlap mode in the native gamut
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post #475 of 861 Old 05-22-2020, 12:24 PM
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With the wide gamut LED projectors I believe you can get increased calibrated brightness at bt709 with brilliant color/overlap mode in the native gamut
I keep BC on with the LED projectors.
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post #476 of 861 Old 05-22-2020, 12:42 PM
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Works great with these DLP LED projectors because of the lower light output. I'm at a longer throw, so hotspoting isn't a concern. Helps a lot with HDR and no extreme viewing cone as well. I can definitely tell a difference with brightness moving from the Stellar 2.2 with the Runco Q750 and the Digital Projection M-Vision Cine 260HB on my unit gain screen. Both are 100in 16:9 and the Runco Q750 looks noticeably brighter. I did turn off BC on the Digital Projection DLP because of how inaccurate it was for me to calibrate.
Thats great . Im shooting my 11s2 from 17.4' so im not too concern with hot spotting just wanted to get your opinion. Sounds like a winner! Thanks
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post #477 of 861 Old 05-22-2020, 12:57 PM
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Originally Posted by blee0120 View Post
Works great with these DLP LED projectors because of the lower light output. I'm at a longer throw, so hotspoting isn't a concern. Helps a lot with HDR and no extreme viewing cone as well. I can definitely tell a difference with brightness moving from the Stellar 2.2 with the Runco Q750 and the Digital Projection M-Vision Cine 260HB on my unit gain screen. Both are 100in 16:9 and the Runco Q750 looks noticeably brighter. I did turn off BC on the Digital Projection DLP because of how inaccurate it was for me to calibrate.
I did a google search on stellar screen and got no hits. Do you have a link?

Jack
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post #478 of 861 Old 05-22-2020, 01:51 PM
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I'm looking to upgrade my screen as well. I've always been a DIY paint or screen material and make my on frame type of guy, but got a good deal on elite screen. I prefer a scope screen over 16x9, because most of my watching is scope until I need my scaler to handle the 16x9 to scope scale to fit the scope screen.

tony4k
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post #479 of 861 Old 05-22-2020, 02:03 PM
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I did a google search on stellar screen and got no hits. Do you have a link?
PM sent. It's a Severtson Stellar White 2.2 screen
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post #480 of 861 Old 05-22-2020, 02:29 PM - Thread Starter
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