More ghost in CRT?
[attachment=8686:m__2_.JPG]
[attachment=8685:m.JPG]

Picture you see above is captured by my digital camera, shutterspeed at 1/250.
Monitor is Samsung syncmaster 1000s(21 inch CRT), set at 1024x768@120Hz.

As some people already mentioned in this forum, I see such ghost in almost every game.

Is this the problem of CRT itself? Or is it still the problem at the new LCD which can support 120Hz?

Here are details of my computer:
Vista x64 SP1
NVIDIA 182.06
i7 920@3.6G, 6G RAM
Rampage 2 extreme
GTX280 triple SLI
1500W PSU
[attachment=8686:m__2_.JPG]

[attachment=8685:m.JPG]



Picture you see above is captured by my digital camera, shutterspeed at 1/250.

Monitor is Samsung syncmaster 1000s(21 inch CRT), set at 1024x768@120Hz.



As some people already mentioned in this forum, I see such ghost in almost every game.



Is this the problem of CRT itself? Or is it still the problem at the new LCD which can support 120Hz?



Here are details of my computer:

Vista x64 SP1

NVIDIA 182.06

i7 920@3.6G, 6G RAM

Rampage 2 extreme

GTX280 triple SLI

1500W PSU
Attachments

m__2_.JPG

m.JPG

#1
Posted 02/28/2009 02:17 AM   
[quote name='gobow' post='511535' date='Feb 28 2009, 02:17 AM']Picture you see above is captured by my digital camera, shutterspeed at 1/250.
Monitor is Samsung syncmaster 1000s(21 inch CRT), set at 1024x768@120Hz.
Is this the problem of CRT itself? Or is it still the problem at the new LCD which can support 120Hz?[/quote]

Below are many papers you can read on ghosting, some on CRT ghosting.

[url="http://www.3d.curtin.edu.au/"]http://www.3d.curtin.edu.au/[/url]

CRT excite the phosphor, as andrew wood show in one of the links - some of the phosphor, especially in green, do not decay fast enough and you will have ghosting/crosstalk. Have you tried 100hz or 85hz and see if that helps with ghosting?

What you need to do is find out the speed of the decay for your particular monitor and then you can narrow down if that is your problem. Perhaps other CRT monitors have much faster phosphor decay and will not exhibit this problem, do you have other CRT monitors or friends with other crt monitors you can try? Maybe some nice people here with CRT ghost free solutions will tell you what brand and model of CRT they are using, Nvidia doesn't seem to give any help which CRT monitors work better than others, certainly they have done some testing.
[quote name='gobow' post='511535' date='Feb 28 2009, 02:17 AM']Picture you see above is captured by my digital camera, shutterspeed at 1/250.

Monitor is Samsung syncmaster 1000s(21 inch CRT), set at 1024x768@120Hz.

Is this the problem of CRT itself? Or is it still the problem at the new LCD which can support 120Hz?



Below are many papers you can read on ghosting, some on CRT ghosting.



http://www.3d.curtin.edu.au/



CRT excite the phosphor, as andrew wood show in one of the links - some of the phosphor, especially in green, do not decay fast enough and you will have ghosting/crosstalk. Have you tried 100hz or 85hz and see if that helps with ghosting?



What you need to do is find out the speed of the decay for your particular monitor and then you can narrow down if that is your problem. Perhaps other CRT monitors have much faster phosphor decay and will not exhibit this problem, do you have other CRT monitors or friends with other crt monitors you can try? Maybe some nice people here with CRT ghost free solutions will tell you what brand and model of CRT they are using, Nvidia doesn't seem to give any help which CRT monitors work better than others, certainly they have done some testing.

#2
Posted 02/28/2009 09:22 AM   
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