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Marcel_D
Joined: 22 Sep 2007
Posts: 54
Location: Canada
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| Posted: Sat Sep 22, 2007 2:30 am Post subject: Image burn-in and text reproduction questions |
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I'm new to CRT projectors but I'm definitely sold on the idea of them. I'm planning on buying one off the site and I want to use it probably for half PC gaming and half movie watching. I was just concerned about image burn in and fine text reproduction which is crucial to PC gaming. My questions are how long does it take a still image to burn in and what is the best way to prevent it, and which projectors are generally able to reproduce fine text clearly?
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Zebu Fellenz
Joined: 21 Dec 2006
Posts: 2567
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| Posted: Sat Sep 22, 2007 1:34 pm Post subject: |
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Welcome to the forums,
How long it takes for an image to burn in depends on how high the brighness and contrast are set on the projector, a good way to prevent it would be to get a projector with an orbiting input card (Ehome Marquee has one) or a projector with built in pic orbiting (The D50, G70, and G90 have it), what projector you will need to reproduce fine text depends on the resolution you want to run, but I would aim for at least a 8" EM Focus projector. I have a G70 and I have no problem seeing fine text when running 1440*808 in a 1.78:1 image area
Hope this helps,
Erik
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Marcel_D
Joined: 22 Sep 2007
Posts: 54
Location: Canada
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| Posted: Sun Sep 23, 2007 5:14 am Post subject: |
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When gaming I'll run the resolution as high as the projector can go without getting a soft picture so somewhere around 1600x1200. Movies I'm not totally sure yet. I think I would run them at a 16:9 resolution, something in the 720p range. Also whats this orbiting card? I think I have an idea of what it does but I've never heard of it.
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jask
Joined: 17 Mar 2006
Posts: 10187
Location: kamloops BC
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| Posted: Sun Sep 23, 2007 6:31 am Post subject: |
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the card slowly shifts the image to prevent static image elements from staying stationary on the phospor, instead of a small crisp CNN logo you have a larger toasty spot on long term static images with high contrast settings
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Stonefool
Joined: 24 Dec 2006
Posts: 253
Location: Sweden
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| Posted: Sun Sep 23, 2007 9:28 pm Post subject: |
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You definitely do not want an electro-static focus machine for gaming, an electro-magnetic focus machine is want you want if your going to play games via it. You don't really need an 8" EM machine for it, but the 8" EM pj's are so "cheap" now a days it's a shame not to go with one, spcially since they can do higher resolutions then the 7" EM machines, and specially the ES machines.
_________________
Trying to get everything to work.
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Marcel_D
Joined: 22 Sep 2007
Posts: 54
Location: Canada
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| Posted: Mon Sep 24, 2007 3:07 am Post subject: |
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Going by price the NEC 9 PG+ seems like it should do the job. The only thing is that its listed as an 8" set even though its 7 1/2" according to Curt. Would it be worth it to look for an actual 8" instead of this one?
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kschmit2
Joined: 09 Mar 2006
Posts: 1141
Location: Heidelberg, Germany
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| Posted: Mon Sep 24, 2007 10:55 am Post subject: |
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well, the tube size between the NEC PG and the NEC XG and Sony G70 are identical.
So you would have to either claim that the G70 is 7.5" , or they are all 8"
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