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deronmoped
Joined: 03 Nov 2006
Posts: 1154
Location: San Diego
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| Posted: Fri Jun 28, 2019 7:04 am Post subject: Your favorite G90 resolution. |
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So I'm used to a 10PG and I was real happy with the results I got out of it. Now I'm setting up a G90 and wondering what I should shoot for. I ran the 10PG at 1440X960@48Hz and the image looked brilliant. I picked those numbers because, 960 was double DVD's 480 and at 48Hz I noticed no flicker and felt it was easier on the PJ. That is, less stressful on the electronics and made it easier to draw a sharper dot.
So far I have messed with 1080 @ 60Hz and 720 @ 60Hz on this G90. At 1080, I only watched one concert video, so no real test there, being concert videos are not know for being well defined. I took a look at 720 last night and right away I spotted scan lines, so that crosses that one off the list. I think I will give 1440X960@48Hz next. The only thing is, I tried a 48Hz signal at 1080 and the PJ did not like that, never tried to get it to lock onto the signal, I just went right to 60Hz.
Last edited by deronmoped on Sun Jun 30, 2019 5:36 am; edited 1 time in total
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Fri Jun 28, 2019 8:28 am Post subject: |
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I guess the most important question is what is your main source: DVD, BR... ?
Also what is your scaler's capabilities?
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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HaydnG90
Joined: 22 May 2006
Posts: 1356
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| Posted: Fri Jun 28, 2019 12:34 pm Post subject: |
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I'm running 1080/24 out of an Oppo 105D into a Lumagen XE+ which scales the image to 1080/72. The image is noticeably smoother than the 1080/60 I was running prior to installing the lumagen.
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deronmoped
Joined: 03 Nov 2006
Posts: 1154
Location: San Diego
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| Posted: Sat Jun 29, 2019 3:53 am Post subject: |
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I run all DVD's, that is why on my 10PG setup I was doing 960P, double DVD resolution. HTPC.
What is the Lumagen XE+?
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HaydnG90
Joined: 22 May 2006
Posts: 1356
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| Posted: Sat Jun 29, 2019 5:39 am Post subject: |
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Standalone video processor. The (+) indicates the units processors can resolve 1080/72Hz. A significant proportion will only do 1080/60 but the + have been checked and are certified to run the higher bandwidth. Paid $500 to have Lumagen upgrade from standard XE
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Sat Jun 29, 2019 11:30 am Post subject: |
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Since all you have is DVD, then 960P makes the most sense, I'd either use 60Hz or 90Hz, this matches the best to the input framerate.
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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deronmoped
Joined: 03 Nov 2006
Posts: 1154
Location: San Diego
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| Posted: Sun Jun 30, 2019 12:51 am Post subject: |
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Why the higher refresh rate? I always figured if you cannot see it flickering then the refresh rate was high enough.
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HaydnG90
Joined: 22 May 2006
Posts: 1356
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| Posted: Sun Jun 30, 2019 3:45 am Post subject: |
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Try changing frequency on your PC monitor and see how the pic changes as it increases.
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deronmoped
Joined: 03 Nov 2006
Posts: 1154
Location: San Diego
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| Posted: Mon Jul 01, 2019 12:12 am Post subject: |
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Well I tried 1440X960 and I still see noticeable scan lines from my seat. So that rules out that resolution. I never had a problem with seeing scan lines on my 10PG at 1440X960. So that means the G90 is sharper then the 10PG and I worked on the 10PG's resolution for quite a while, getting it the best I could. I not sure if that translates into a sharper DVD image, because I'm not seeing that yet.
Next I will try a HD resolution 1080, to minimize seeing scan lines.
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HaydnG90
Joined: 22 May 2006
Posts: 1356
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| Posted: Mon Jul 01, 2019 12:23 am Post subject: |
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1080P/60Hz should be your baseline resolution. 72Hz significantly improves it. The G90 has got the bandwidth so no reason not to go to 1060/60.
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Mon Jul 01, 2019 6:05 am Post subject: |
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| HaydnG90 wrote: | | 1080P/60Hz should be your baseline resolution. 72Hz significantly improves it. The G90 has got the bandwidth so no reason not to go to 1060/60. |
But as he uses DVD as a source material, netiher 1080P nor 72Hz makes any sense for him.
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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