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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 17860
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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 Link Posted: Tue Mar 10, 2015 1:25 pm Post subject: |
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| gregstv wrote: | | I don't have many at this stage. I am still learning how to do screen shots. The camera seems to change how long the shutter is open depending on light from the screen. 2 similar shots attached. I will do more when I can get consistency with the camera. I am using a Canon EOS30D. It has so many settings to figure out. |
You're running in aperature priority or auto-mode so the camera is compensating to get enough light.
All SLR have more or less the same settings and learning the basics about how f-stop/ISO/shutter work together is fundamental to understanding how these things work and being in control.
Try running in 100% manual (M) to learn how these 3 things work together. Once the basic fundamentals are known, you can pick up any camera and maximize it's use. I find the most frustrating thing is cameras that only have auto mode (like most small point & shoots) as you have no idea what the camera's doing in AUTO. All will behave differently. Manual mode? You're completely in charge and once you know the basics, it becomes straight forward.I have the same older Canon myself that I bought ~10 years ago, but I can pick up any SLR (film or digital) from any manufacturer from and know how to use it because the basics are understood - even the latest 70D or whatever Canon's making today. The principles of light and physics haven't/can't change.
See this:
http://www.exposureguide.com/exposure.htm
Or back up a bit and start from the start:
http://petapixel.com/2012/10/03/a-great-graphic-for-understanding-how-iso-aperture-and-shutter-speed-work/
Skip the camera manual. It'll mostly show you how to GET to the controls to change things, not WHY you'd want to change a control or setting.
Kal
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My basement/HT/bar/brewery build 2.0
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Jeremy112
Joined: 28 Sep 2006
Posts: 2645
Location: Fond du Lac, WI
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| Link Posted: Tue Mar 10, 2015 1:36 pm Post subject: |
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Kal are you using a 6 point star filter in your avatar pic? I know its a bit OT, but since there is camera talk I figured I would ask 
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When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it 
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 17860
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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Jeremy112
Joined: 28 Sep 2006
Posts: 2645
Location: Fond du Lac, WI
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| Link Posted: Tue Mar 10, 2015 3:00 pm Post subject: |
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Thanks for the info Kal, that explains the starburst effect in great detail, and I now know that much more about cameras 
I have a Canon T3i and I've been trying to get more creative with it (well... as creative as you can get with a kit lens)
Probably one of the reasons I like your photos so much is because the starburst effect in the photos just makes them look better
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When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 17860
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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gregstv
Joined: 27 Aug 2007
Posts: 628
Location: Australia
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| Link Posted: Thu Apr 16, 2015 12:26 pm Post subject: |
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Fitted HD144 lens.
If I can find a good P16 tube for the second projector I will get another set of HD144's and play with stacking them
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km987654
Joined: 25 Jul 2007
Posts: 2857
Location: Australia
TV/Projector: Barco BG809s
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| Link Posted: Thu Apr 16, 2015 10:11 pm Post subject: |
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Those images look good from your 808s. Seems you have done a great job.
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gregstv
Joined: 27 Aug 2007
Posts: 628
Location: Australia
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| Link Posted: Fri Apr 17, 2015 12:58 am Post subject: |
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Thanks,
Its getting there. I haven't touched the focus at all other than the mechanical.
This weekend I will do the magnets and the electronic astig.
I am going to have a play with making some 6 pole as well.
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km987654
Joined: 25 Jul 2007
Posts: 2857
Location: Australia
TV/Projector: Barco BG809s
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| Link Posted: Fri Apr 17, 2015 1:45 am Post subject: |
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| gregstv wrote: | Thanks,
Its getting there. I haven't touched the focus at all other than the mechanical.
This weekend I will do the magnets and the electronic astig.
I am going to have a play with making some 6 pole as well. |
Did those SEOS sets come with 6 pole CPC? The standard BG808s came with 4 pole CPC.
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6319
Location: Australia
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| Link Posted: Fri Apr 17, 2015 1:46 am Post subject: |
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Do you notice my HD144s being much nicer?
_________________
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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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6319
Location: Australia
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| Link Posted: Fri Apr 17, 2015 1:47 am Post subject: |
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| km987654 wrote: | | gregstv wrote: | Thanks,
Its getting there. I haven't touched the focus at all other than the mechanical.
This weekend I will do the magnets and the electronic astig.
I am going to have a play with making some 6 pole as well. |
Did those SEOS sets come with 6 pole CPC? The standard BG808s came with 4 pole CPC. |
So did the Cine 9 and 909.
_________________
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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gregstv
Joined: 27 Aug 2007
Posts: 628
Location: Australia
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| Link Posted: Fri Apr 17, 2015 3:30 am Post subject: |
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They came with 4 pole. I picked up an 808 off ebay with 4 pole. I will use the magnets off the 808 to make a six pole and fit it to the green tube to start with.
Case, the lens make a big difference to the colour. Sharpness is very close maybe a tad better in the corners. When I find a green tube for the second SEOS I will get another set of lens from Curt.
I have some faint lines down the left hand side of the picture. Adjusting the 17volt rail to 17.5 made the fainter but still there. Any ideas of what causes this?
Thanks,
Greg
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km987654
Joined: 25 Jul 2007
Posts: 2857
Location: Australia
TV/Projector: Barco BG809s
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| Link Posted: Fri Apr 17, 2015 3:43 am Post subject: |
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| gregstv wrote: | They came with 4 pole. I picked up an 808 off ebay with 4 pole. I will use the magnets off the 808 to make a six pole and fit it to the green tube to start with.
Case, the lens make a big difference to the colour. Sharpness is very close maybe a tad better in the corners. When I find a green tube for the second SEOS I will get another set of lens from Curt.
I have some faint lines down the left hand side of the picture. Adjusting the 17volt rail to 17.5 made the fainter but still there. Any ideas of what causes this?
Thanks,
Greg |
Each of the rings on a CPC set uses a different magnetic field simply adding a set of rings from another 4 pole set doesn't result in a 6 pole set. If whatever you have works thats great but it's not 6 pole if you have done what i think you have.
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6319
Location: Australia
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| Link Posted: Fri Apr 17, 2015 3:57 am Post subject: |
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| km987654 wrote: | | gregstv wrote: | They came with 4 pole. I picked up an 808 off ebay with 4 pole. I will use the magnets off the 808 to make a six pole and fit it to the green tube to start with.
Case, the lens make a big difference to the colour. Sharpness is very close maybe a tad better in the corners. When I find a green tube for the second SEOS I will get another set of lens from Curt.
I have some faint lines down the left hand side of the picture. Adjusting the 17volt rail to 17.5 made the fainter but still there. Any ideas of what causes this?
Thanks,
Greg |
Each of the rings on a CPC set uses a different magnetic field simply adding a set of rings from another 4 pole set doesn't result in a 6 pole set. If whatever you have works thats great but it's not 6 pole if you have done what i think you have. |
Basically a total waste of time. A second set of 4 poles wont do anything worthy.
NECs are factory fitted with 6 pole CPCs and for some reason he wants to step down to a lessor machine, and im still confused as to WHY...
_________________
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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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6319
Location: Australia
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| Link Posted: Fri Apr 17, 2015 4:00 am Post subject: |
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| gregstv wrote: | They came with 4 pole. I picked up an 808 off ebay with 4 pole. I will use the magnets off the 808 to make a six pole and fit it to the green tube to start with.
Case, the lens make a big difference to the colour. Sharpness is very close maybe a tad better in the corners. When I find a green tube for the second SEOS I will get another set of lens from Curt.
I have some faint lines down the left hand side of the picture. Adjusting the 17volt rail to 17.5 made the fainter but still there. Any ideas of what causes this?
Thanks,
Greg |
Yes, they are a Barco thing. Its normal on them, its something you just dont get on an NEC, but you still want to step backwards!!
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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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gregstv
Joined: 27 Aug 2007
Posts: 628
Location: Australia
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| Link Posted: Fri Apr 17, 2015 4:45 am Post subject: |
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Its not about stepping backwards. Its about it being a hobbie and challenging myself to get the best out of each projector. I have nothing to loose and fun times to gain. I really enjoy making changes and mods and seeing the results.
The NEC has issues and needs to come down to be sorted. This will be my next challenge. It wont do 1080i@96. I also need to hit the kelvin button after it warms up to get it to the right gray scale.
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6319
Location: Australia
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| Link Posted: Fri Apr 17, 2015 6:22 am Post subject: |
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Well get it sorted and enjoy a superior machine!
Either leave AKB on or store the warmed up values.
_________________
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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gregstv
Joined: 27 Aug 2007
Posts: 628
Location: Australia
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| Link Posted: Fri Apr 17, 2015 6:39 am Post subject: |
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One of the problems is that it wont store the warmed up values. Store comes up on the screen and I store it. Same problem next time I turn it on.
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6319
Location: Australia
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| Link Posted: Fri Apr 17, 2015 9:25 am Post subject: |
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Have you tried turning AKB on?
_________________
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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gregstv
Joined: 27 Aug 2007
Posts: 628
Location: Australia
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| Link Posted: Sat Apr 18, 2015 9:51 am Post subject: |
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Played with the green focus today.
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