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hiddink
Joined: 09 Jan 2014
Posts: 47
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 Link Posted: Mon Jul 07, 2014 2:27 pm Post subject: Barco 808G: boost light ouput? |
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Hello,
This weekend I tested the following setup:
- connected an iPad to Barco 808G, using HD Fury for digital conversion and projected on a 4mts wide screen outside in the open air during the night to watch a soccer game from the World Championships in Brasil. The result was quite nice. However, I felt that the projected image was far more darker than what was seen on the iPad.
Is there a way to boost to light output on the Barco 808G to get a brighter image? Could it help to give some more power to the HD Fury? Or comes the problem from the incoming signal from the iPad?
Could you give me some insights on this issue?
Thanks in advance!
-brt
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hiddink
Joined: 09 Jan 2014
Posts: 47
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| Link Posted: Mon Jul 07, 2014 4:42 pm Post subject: |
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Hello,
After some more reading on this, I think my problem with the light output has to do with gamma boosting, or better, the lack of it. There are several options for the Barco 808S to add Gamma boosting but I found this brand new product which I am going to try (HD Fury related):
http://www.hdfury.eu/en/home/15-nano-gx.html
Seems to have all the features of HD Fury 1 and more, including auto syncing and gamma boosting...
I'll test it and let you know...
Thanks and regards,
-brt
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Link Posted: Mon Jul 07, 2014 10:27 pm Post subject: |
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| hiddink wrote: | | After some more reading on this, I think my problem with the light output has to do with gamma boosting, or better, the lack of it. |
maybe, if by too dark you mean the portion of the picture that are supposed ot be dark are like giant ink blobs with no detail then that's gamma boost.
If the overall image is just not bright enough then your screen is too big.
| hiddink wrote: | Seems to have all the features of HD Fury 1 and more, including auto syncing and gamma boosting...
I'll test it and let you know...
Thanks and regards,
-brt |
they really don't tell you if it comes with a power supply and I know the HD fury will not drive a really long RGB cable. You can also add a Gamma X booster to your existing Fury and it comes with a power supply to power everything adequately.
http://www.curtpalme.com/GammaX.shtm
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6319
Location: Australia
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| Link Posted: Tue Jul 08, 2014 2:22 am Post subject: |
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This is not the projector for the job. A 13 foot screen width is a big ask for this machine even in a dark room.
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Barco CineMAX, 120" OZ Theatre Majestic 16:9 screen, H/K AVR 7.1...
RUNCO DTV991 LC ( NEC XG 852 LC ) 100" 4:3 screen, H/K AVR 5.1...
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km987654
Joined: 25 Jul 2007
Posts: 2857
Location: Australia
TV/Projector: Barco BG809s
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| Link Posted: Tue Jul 08, 2014 6:50 am Post subject: |
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You certainly should not compare light output from a 10.5" screen with screen greater that 156". When you consider that the surface area of each of your tubes is considerably smaller than your iPad the projector does really well.
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hiddink
Joined: 09 Jan 2014
Posts: 47
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| Link Posted: Tue Jul 08, 2014 7:24 am Post subject: |
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Hello,
Thanks for your replies...The specs of the Barco 808 say that it could project up to 6x4.5m...I understand that projecting 1x0.75mts is not the same as projecting 4x3mt in terms of light output but, if configured right and working with the right hardware, why could this machine not project a decent image for 6x4.5mts if the specs say so?
Thanks again!
Regards,
-brt
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26690
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Link Posted: Tue Jul 08, 2014 7:51 am Post subject: |
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You need a higher gain screen, or a brighter projector.
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6319
Location: Australia
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| Link Posted: Tue Jul 08, 2014 8:46 am Post subject: |
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| hiddink wrote: | Hello,
Thanks for your replies...The specs of the Barco 808 say that it could project up to 6x4.5m...I understand that projecting 1x0.75mts is not the same as projecting 4x3mt in terms of light output but, if configured right and working with the right hardware, why could this machine not project a decent image for 6x4.5mts if the specs say so?
Thanks again!
Regards,
-brt |
Read those specs again, they dont say anywhere that it will produce a decent image on that size screen, they say that is max size.
The light output doesnt change because you use a bigger screen, and the rating in lumens is a constant. As the screen surface area increases, the lux level with decrease.
You have seen for yourself that those specs are 100% correct in that the machine can project an image that large, but no where in any specs does it suggest the image will look very good.
_________________
Barco CineMAX, 120" OZ Theatre Majestic 16:9 screen, H/K AVR 7.1...
RUNCO DTV991 LC ( NEC XG 852 LC ) 100" 4:3 screen, H/K AVR 5.1...
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