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fuzzyreets
Joined: 23 Jul 2010
Posts: 6
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| Posted: Sun Jul 25, 2010 1:08 pm Post subject: Questions about the "GREYSCALE & COLOUR CALIBRATION |
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Hi folks. First time poster here. Just starting to get into tinkering with video calibration. I bought the i1Display LT yesterday and the DVE disk so I'm on my way with the GREYSCALE & COLOUR CALIBRATION FOR DUMMIES guide here. I'm wondering what settings should I start out with when I'm starting to do this? Just use what I am currently using and go from there? I'm guessing that is the idea but I wanted to be sure. Also, I'm thinking the cell/back light setting has to come into play here somewhere but I don't see it mentioned in the guide anywhere. What do I set that as? Thanks everyone.
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HogPilot
Joined: 21 Jan 2010
Posts: 2383
TV/Projector: Vizio P702ui-B3, Pioneer Elite Pro-151FD & 111FD
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| Posted: Sun Jul 25, 2010 7:24 pm Post subject: |
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Your question isn't very specific, what settings are you asking about? TV settings, calibration program settings, etc?
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fuzzyreets
Joined: 23 Jul 2010
Posts: 6
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| Posted: Sun Jul 25, 2010 7:58 pm Post subject: |
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| HogPilot wrote: | | Your question isn't very specific, what settings are you asking about? TV settings, calibration program settings, etc? |
I was referring to pretty much all the settings in the TV. Don't know what to start out with. Especially the cell light as there is no mention of adjustment for that or what calibration portion it might come into play with. Thanks.
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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| Posted: Mon Jul 26, 2010 3:18 pm Post subject: |
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Aha. That's what I figured.
I would set cell lighting at the default setting and run through a calibration and see where you end up. If you're not getting perfect numbers after adjustment, consider changing the cell lighting to do what you want. For example, if blacks aren't black as you'd like, lower it. If contrast isn't high enough, raise it.
There's no right or wrong answer that can be given ahead of time. You need to measure and see and then use judgement to take the appropriate action.
Kal
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fuzzyreets
Joined: 23 Jul 2010
Posts: 6
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| Posted: Wed Jul 28, 2010 7:47 pm Post subject: |
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I think I've officially given up at this point. I just spent another 2 hours trying to do something with my plasma. After I finish I have pretty decent readings but yet again I have the yellow soupy tint to everything. Looks like it sucks the life out of my display. I set it back to my "wrong" settings and my screen comes alive again. I'm guessing at this point that either my TV lacks the correct base color information for RGB and therefore gives me a terrible outcome or I just don't like a calibrated screen. I don't know though, I did my two samsung LCDs and they look awesome now. Of course my main one is a Plasma which looks terrible after I do this.
I've attached my settings which I made using ColorHCFR if anyone is interested.
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Download |
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Plasma Settings 7.28.10.zip |
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3.39 KB |
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4 Time(s) |
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Kutis
Joined: 07 Aug 2010
Posts: 1
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| Posted: Sat Aug 07, 2010 3:01 pm Post subject: |
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| kal wrote: | I would set cell lighting at the default setting and run through a calibration and see where you end up. If you're not getting perfect numbers after adjustment, consider changing the cell lighting to do what you want. For example, if blacks aren't black as you'd like, lower it. If contrast isn't high enough, raise it.
There's no right or wrong answer that can be given ahead of time. You need to measure and see and then use judgement to take the appropriate action.
Kal |
Would it be correct approach to set backlight/ cell lightning to minimum value that can be used to achieve 30-40 ftl at 100 IRE? I guess that way black would be blackest possible? And also - dummy guide says that 10 ftl (for projectors) at 100 IRE would be acceptable in light controlled room, but is there some recommendation for well lit room (for example sunny weather and big windows)? And if there is - how is Gamma related to this? Thanks already for answers.
edit: got ftL for wrong display type
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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| Posted: Sat Aug 07, 2010 5:32 pm Post subject: |
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| Kutis wrote: | | kal wrote: | I would set cell lighting at the default setting and run through a calibration and see where you end up. If you're not getting perfect numbers after adjustment, consider changing the cell lighting to do what you want. For example, if blacks aren't black as you'd like, lower it. If contrast isn't high enough, raise it.
There's no right or wrong answer that can be given ahead of time. You need to measure and see and then use judgement to take the appropriate action.
Kal |
Would it be correct approach to set backlight/ cell lightning to minimum value that can be used to achieve 30-40 ftl at 100 IRE? |
Sounds reasonable. All depends on the results you get. You may not get a flat result. Sometimes it''s best to have cell lighting somewhere around the mid-point (average) than really low. I'd say try it. If greyscale and gamma and colours are perfect then it's fine.
| Quote: | | And also - dummy guide says that 10 ftl (for projectors) at 100 IRE would be acceptable in light controlled room, but is there some recommendation for well lit room (for example sunny weather and big windows)? |
For projectors you need a dark room. Light controlled doesn't only mean mean that no stray light is allowed in, it means that the light off the screen is also controlled so that it doesn't bounce back. With projectors you really need to control the outside light. Any sunlight or stray light completely destroys the image. You can't use a projector in a well lit room.
Kal
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ktm250
Joined: 26 Jul 2010
Posts: 6
Location: Northeast Pa
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| Posted: Thu Aug 12, 2010 3:41 pm Post subject: |
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So If I understand what you are saying, is that the backlight in a LCD or cell lightning in a plasma will effect the grayscale calibration. Is that correct?
Thanks
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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