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pottzman
Joined: 24 May 2009
Posts: 24
Location: Sydney, Australia
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| Posted: Sat Oct 10, 2009 4:49 am Post subject: 1080p @ 48hz |
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Hi all I am wondering if anyone can tell me which iScan DVDO scalers can take bluray source ie (1080p @ 24fps) and can output 1080p @ 48hz (2:2 puldown)? I have read that my G90 will not accept 1080p @ 24hz and I don't want to display blurays at 60hz (3:2 pulldown) because of the stuttering effect. Can all models do this or is it only restricted to certain models?
Thankyou
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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pottzman
Joined: 24 May 2009
Posts: 24
Location: Sydney, Australia
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| Posted: Sat Oct 10, 2009 5:00 am Post subject: |
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are the Lumagens going for around the same price as VP30 VP50 or VP50 pro?
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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pottzman
Joined: 24 May 2009
Posts: 24
Location: Sydney, Australia
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| Posted: Sat Oct 10, 2009 5:17 am Post subject: |
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yes i purchased a moome HDMI card for G90. Nice I guess i will look on videogon. I have looked before but don't seem to find many ads that will ship to Australia.
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Sat Oct 10, 2009 2:50 pm Post subject: |
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I just sent you a PM pottzman.
craigr
_________________
JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
Light Illusion ColourSpace XPT Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
OMARDRIS JVC Software Patch to use K10-A and Jeti with JVC OEM AutoCal Software!
Sencore CR7000 CRT Tube Analyzer / Rejuvenater
Authorized Dealer for Lumagen & just about everything worth buying 
www.CIR-Engineering.com - craigr@cir-engineering.com
Phone: 865-405-6892
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benareeno
Joined: 22 Mar 2006
Posts: 1614
Location: ottawa, canada
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| Posted: Mon Nov 02, 2009 10:45 pm Post subject: |
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I would do active area scanning AND run 48Hz....48Hz is awesome! Very theatre like...don't judge 48Hz by the windows desktop...judge it by movie content.
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Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
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| Posted: Tue Nov 03, 2009 1:37 am Post subject: |
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The cinemas give me epilepsy too. It's not called the "flicks" for nothing.
Just because they do something bad, doesn't mean we should copy.
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Gerbrand
Joined: 13 May 2008
Posts: 199
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| Posted: Sun Nov 08, 2009 1:48 pm Post subject: |
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Since I do not own my Iscan HD+ anymore, this is from memory. But I think you could do a 3:2 pulldown from a 60 Hz source and play at 48 Hz (or 72 Hz for the matter). I am not sure if the newer models accept 24p.
Gerbrand
_________________
BG1209s (color filtered,new LUGs!), 13000h
Bat cave
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1031
Joined: 22 Mar 2006
Posts: 657
Location: Finland
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cinema mad
Joined: 25 Nov 2009
Posts: 219
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| Posted: Wed Dec 02, 2009 1:27 am Post subject: |
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| Mark_A_W wrote: | The cinemas give me epilepsy too. It's not called the "flicks" for nothing.
Just because they do something bad, doesn't mean we should copy. |
Hi Mark,
I run 24p in to my VP50pro and 1920x800p "48Hz" out, for 2 40:1 Blu-rays
Aaron Rigg has seen the pic and was suprised to see no fliker, I dont get any fliker with my custom timings ..
Cheers...
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Wed Dec 02, 2009 2:12 am Post subject: |
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Do you guys know off hand if the VP50 will take 1080p/60 and convert it to 1080p/24 properly?
_________________
Tech support for nothing
CRT.
HD done right!
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MikeEby
Joined: 24 Jun 2007
Posts: 5237
Location: Osceola, Indiana
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| Posted: Wed Dec 02, 2009 2:18 am Post subject: |
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| cinema mad wrote: | | Mark_A_W wrote: | The cinemas give me epilepsy too. It's not called the "flicks" for nothing.
Just because they do something bad, doesn't mean we should copy. |
Hi Mark,
I run 24p in to my VP50pro and 1920x800p "48Hz" out, for 2 40:1 Blu-rays
Aaron Rigg has seen the pic and was suprised to see no fliker, I dont get any fliker with my custom timings ..
Cheers... |
How much of a role does phosphor persistence play in how much flicker you get?
Also is true to keep porches small thus decreased retrace time and reduce flicker?
Whenever I tried 48Hz dark scenes looked great….Until a bright scene then its flickler city… UCK!
I also wonder some people are more sensitive to flicker. Just like some people see rainbow effect on DLP’s and others don’t.
Mike
_________________
Doing HD since the last century!
Last edited by MikeEby on Wed Dec 02, 2009 1:41 pm; edited 1 time in total
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Wed Dec 02, 2009 3:23 am Post subject: |
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| AnalogRocks wrote: | | Do you guys know off hand if the VP50 will take 1080p/60 and convert it to 1080p/24 properly? |
It will not. The Lumagen VISION series will do excellent IVTC though.
craigr
_________________
JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
Light Illusion ColourSpace XPT Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
OMARDRIS JVC Software Patch to use K10-A and Jeti with JVC OEM AutoCal Software!
Sencore CR7000 CRT Tube Analyzer / Rejuvenater
Authorized Dealer for Lumagen & just about everything worth buying
www.CIR-Engineering.com - craigr@cir-engineering.com
Phone: 865-405-6892
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Wed Dec 02, 2009 3:30 am Post subject: |
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| CIR Engineering wrote: | | AnalogRocks wrote: | | Do you guys know off hand if the VP50 will take 1080p/60 and convert it to 1080p/24 properly? |
It will not. The Lumagen VISION series will do excellent IVTC though.
craigr |
Thanks Craig.
_________________
Tech support for nothing
CRT.
HD done right!
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huggy
Joined: 02 Aug 2008
Posts: 927
Location: Melbourne,Australia
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| Posted: Wed Dec 02, 2009 5:36 am Post subject: |
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| MikeEby wrote: |
I also wonder some people are more sensitive to flicker. Just like some people see rainbow effect on DLP’s and others don’t.
Mike |
I think it's a case of some being more sensitive like others.Personally I run blu rays at 1080p48 hz and see no flicker at all,I've tried really hard to notice them too.DLP is another story,I see rainbows no matter how hard I try not too. 
Dave
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Wed Dec 02, 2009 6:57 am Post subject: |
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| huggy wrote: | | MikeEby wrote: |
I also wonder some people are more sensitive to flicker. Just like some people see rainbow effect on DLP’s and others don’t.
Mike |
I think it's a case of some being more sensitive like others.Personally I run blu rays at 1080p48 hz and see no flicker at all,I've tried really hard to notice them too.DLP is another story,I see rainbows no matter how hard I try not too.
Dave |
Yep DLP is like that for me too. Even the newer set's. I was watching one at a store that had hockey on it. All the players has a trail 3 bodies deep.
_________________
Tech support for nothing
CRT.
HD done right!
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cinema mad
Joined: 25 Nov 2009
Posts: 219
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| Posted: Wed Dec 02, 2009 8:00 am Post subject: |
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| MikeEby wrote: | | cinema mad wrote: | | Mark_A_W wrote: | The cinemas give me epilepsy too. It's not called the "flicks" for nothing.
Just because they do something bad, doesn't mean we should copy. |
Hi Mark,
I run 24p in to my VP50pro and 1920x800p "48Hz" out, for 2 40:1 Blu-rays
Aaron Rigg has seen the pic and was suprised to see no fliker, I dont get any fliker with my custom timings ..
Cheers... |
How much of a role does phosphor persistence play in how much flicker you get?
Also is true to keep porches small thus decreased retrace time and reduce flicker?
Whenever I tried 48Hz dark scenes looked great….Until a bright scene then its fickler city… UCK!
I also wonder some people are more sensitive to flicker. Just like some people see rainbow effect on DLP’s and others don’t.
Mike |
Yes the Reduced Porches are the Key to reducing flicker...
I also try and keep the Projectors RGB shift adjustment as close to centered 128 on mine & use the horizontal shift adjustment which is basicly A porch adjustment in the VP50pro to Help Center the Picture on the Raster...
Doing this aids in helping to acheive zero drift...
Cheers....
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JohnHWman
Joined: 15 May 2007
Posts: 215
Location: France - Grenoble
TV/Projector: Sony VPH-G90U (one unit for me, four others units repaired and sold)
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| Posted: Wed Dec 02, 2009 12:41 pm Post subject: |
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| benareeno wrote: | | I would do active area scanning AND run 48Hz....48Hz is awesome! Very theatre like...don't judge 48Hz by the windows desktop...judge it by movie content. |
Exactly !
I'm also using 1080p48 (@116,8MHz pixelclock) mode for watching HD material for years on my G90.
I've been using HTPC and now BDP-83/HD-XE1 through VP50Pro scaler (1080p24 -> 1080p48). Also tested on VP50 from 1080p60 to 1080p48 conversion with success.
I didn't see any flicker, thank to the reduced porches.
John
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Home theater enthusiast for over 20 years !
My dedicated HT room !
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