Talk:CRT projector

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3200x2560 or 2500x1200 max res

What's wrong with mentioning "up to 3200x2560"? Not at 60fps, obviously, more like 20-24, and I'd be concerned about flicker, but it's not like DLP's 1920x1080 are real (most have half an double it through interlace) either. That's what "up to" is for. Saying "up to 2500x2000" is simply wrong when there are 3200x2560 models - "up to" means there are no higher-res ones. CP/M^comm |Wikipedia Neutrality Project| 18:40, 16 February 2008 (UTC)[reply]

Not only would the flicker be terrible at 24fps, the MTF would still suck eggs (perhaps it would be acceptable at 2500 x 2000 on the high end Barcos), uneven phosphor persistence would also affect the image (green after-images). The best option would be to run at 48fps, but then you are way way over the frequency response of the video amplifiers. DLP can display 1920 x 1080 and beyond in models that cost the same as a Barco Cine 9 and the MTF at this resolution for them is perfect. If we're talking kilobucks then take a look at Sony's latest [1] - 4k native. See the edit I just made on the article page. Megapixie (talk) 00:18, 17 February 2008 (UTC)[reply]

What the heck is MTF?

See Optical transfer function. Basically the ability of an optical system (like a CRT monitor or projector) to resolve something. In the case of a CRT projector imagine a single white pixel on a black background. As the resolution increases the CRT has to change the beam voltage more quickly to project the single pixel, the result is that the pixel has soft edges rather than a hard edges. Eventually the edges of the pixel meet, and the pixel isn't white anymore, but grey. As the resolution increases further the grey becomes darker. Megapixie (talk) 03:56, 19 April 2008 (UTC)[reply]

Well, almost all post 1990 or so models can do 1920x1080 interlaced. — Preceding unsigned comment added by 194.100.83.191 (talk) 16:22, 30 June 2011 (UTC)[reply]