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richmond5
Joined: 17 Aug 2007
Posts: 48
Location: Toronto, Canada
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| Posted: Wed Jun 25, 2008 2:00 am Post subject: |
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| ExCavTanker wrote: | richmond5,
I just read your latest post on AVS and see that you are using the diffusor. How well does the diffusor work at the 20-50 IRE levels when reading grayscale? |
Great. It works great all the way from 0 to 100 IRE. I even took the option of 'average many reads', it took a bit longer from 0 to 40 IRE , the rest are pretty fast.
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rajdude
Joined: 10 Mar 2006
Posts: 65
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| Posted: Tue Jul 22, 2008 2:15 pm Post subject: |
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| kal wrote: | The Guide was updated last week to indicate that CRT mode should be used for all CRT type displays.
Kal |
Hey Kal, I still see that the guide says you have to use the CRT mode.
Now I know that your post is rather old........did something change and made you switch back to recommending LCD mode?
| kal wrote: | Ensure that the "Calibration Mode" is set to "LCD" for all types of display types except for the following situations:
Users with CRT direct view (tube) displays should select "CRT". This is for both the Eye-One and Spyder2 sensors.
Users with CRT rear-projection and CRT front-projection displays should select "LCD". This is for both the Eye-One and Spyder2 sensors. If you run into issues such as finding that the software locks up or takes very long (30-60 seconds) to take readings sometimes, you may want to try "CRT" mode instead. We're still trying to figure out the logic behind all this and which is the best mode to use for CRT rear/front projectors - sorry!
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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: Tue Jul 22, 2008 3:02 pm Post subject: |
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| rajdude wrote: | | Hey Kal, I still see that the guide says you have to use the CRT mode. |
No it doesn't. It says:
| Quote: | Ensure that the "Calibration Mode" is set to "LCD" for all types of display types except for the following situations:
- Users with CRT direct view (tube) displays should select "CRT". This is for both the Eye-One and Spyder2 sensors.
- Users with CRT rear-projection and CRT front-projection displays should select "LCD". This is for both the Eye-One and Spyder2 sensors. If you run into issues such as finding that the software locks up or takes very long (30-60 seconds) to take readings sometimes, you may want to try "CRT" mode instead. We're still trying to figure out the logic behind all this and which is the best mode to use for CRT rear/front projectors - sorry!
- Users with Plasma displays using an Eye-One sensor should select "Plasma". There is no "Plasma" option for Spyder2 users - use "LCD" instead.
- Those using the Eye-One Pro meter should choose "Eye One Pro" as the display type.
Even if your display doesn't use LCD technology, the "LCD" option is the right one to use with other digital displays such as SXRD, LCoS, DLP, etc. CRT and Plasma technologies as well as the Eye-One Pro meter are the only possible exceptions where something other than "LCD" may be used.
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Kal
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rajdude
Joined: 10 Mar 2006
Posts: 65
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| Posted: Tue Jul 22, 2008 3:10 pm Post subject: |
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Ok got it ! Although it still says "Users with CRT rear-projection and CRT front-projection displays should select "LCD". "
........the highlighted text holds the key, right?
| kal wrote: | | rajdude wrote: | | Hey Kal, I still see that the guide says you have to use the CRT mode. |
No it doesn't. It says:
| Quote: | Ensure that the "Calibration Mode" is set to "LCD" for all types of display types except for the following situations:
- Users with CRT direct view (tube) displays should select "CRT". This is for both the Eye-One and Spyder2 sensors.
- Users with CRT rear-projection and CRT front-projection displays should select "LCD". This is for both the Eye-One and Spyder2 sensors. If you run into issues such as finding that the software locks up or takes very long (30-60 seconds) to take readings sometimes, you may want to try "CRT" mode instead. We're still trying to figure out the logic behind all this and which is the best mode to use for CRT rear/front projectors - sorry!
- Users with Plasma displays using an Eye-One sensor should select "Plasma". There is no "Plasma" option for Spyder2 users - use "LCD" instead.
- Those using the Eye-One Pro meter should choose "Eye One Pro" as the display type.
Even if your display doesn't use LCD technology, the "LCD" option is the right one to use with other digital displays such as SXRD, LCoS, DLP, etc. CRT and Plasma technologies as well as the Eye-One Pro meter are the only possible exceptions where something other than "LCD" may be used.
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Kal |
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rajdude
Joined: 10 Mar 2006
Posts: 65
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| Posted: Tue Jul 22, 2008 3:12 pm Post subject: |
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Hey, one more question while we are here.......
Some people talk about calibration is to be done while the 1One is pointing TOWARDS the CRT guns (and something about trying to get the refresh rate)
then again other people (and the guide and HCFR ) say that the calibration needs to be done while the 1One is on a black surface.
Which one is correct ?
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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: Tue Jul 22, 2008 3:15 pm Post subject: |
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| rajdude wrote: | Hey, one more question while we are here.......
Some people talk about calibration is to be done while the 1One is pointing TOWARDS the CRT guns (and something about trying to get the refresh rate)
then again other people (and the guide and HCFR ) say that the calibration needs to be done while the 1One is on a black surface.
Which one is correct ? |
Depends who you talk to. There doesn't seem to be a clear answer.
Note that these confusions are only with CRT front projectors and sometimes CRT rear projectors. No other display types seem to be this confusing as to what direction/mode to use.
Kal
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Tue Jul 22, 2008 3:17 pm Post subject: |
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I ahve not done my RPCRT but i would use CRT mode here, Although i have heard TV's with the protective screen on them cant read the refresh rate when calibrating. But for Fronts Use LCD mode facing the Screen most consistant results and I would say accurate. I tested it this way with my Professionaly calibrated Marquee 8000 and the greyscale was almost exactly as my calibrators printout useing this method the other methods were more off than his, he used a sencore sensor.
Athanasios
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AVphile
Joined: 02 Dec 2008
Posts: 334
Location: Ottawa, Ontario
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| Posted: Wed Dec 03, 2008 8:15 pm Post subject: |
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| Quote: | Ensure that the "Calibration Mode" is set to "LCD" for all types of display types except for the following situations:
[list][*]Users with CRT direct view (tube) displays should select "CRT". This is for both the Eye-One and Spyder2 sensors.
[*]Users with CRT rear-projection and CRT front-projection displays should select "LCD". This is for both the Eye-One and Spyder2 sensors. If you run into issues such as finding that the software locks up or takes very long (30-60 seconds) to take readings sometimes, you may want to try "CRT" mode instead. We're still trying to figure out the logic behind all this and which is the best mode to use for CRT rear/front projectors - sorry!
[*]Users with Plasma displays using an Eye-One sensor should select "Plasma". There is no "Plasma" option for Spyder2 users - use "LCD" instead.
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Are these non-issues when using CalMan software?
Why does the writeup for the CalMan say this?
| Quote: | | SpectraCal are an OEM of X-rite and therefore have exclusive access to a much lower interface in the EyeOne Display 2 / LT / Pro sensors than other software. CalMAN can therefore properly support Plasma with all meters. |
Please explain why the other software can not properly support Plasma.
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