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Nocuous · 12-29-2004, 02:54 PM

The main image differences are resolution and contrast. The typical contrast of a CRT is 25,000:1 where some of the best DLP are 3000:1 a very noticible difference.

A similar comparison would be to look at the difference between LCD monitors and CRT monitors. The pixels on an lcd are easily visible at all times, even the high quality dell 1600x1200 ones always have a little bit of a squared pixel look to them where a good CRT has less noticible individual pixels. Same is true with projectors when comparing DLP to CRT. The image quality from DLP has a little bit of a non anti-aliased look to it.

The contrast difference is most noticible when playing computer games or watching dark movies on the projector. Where the DLP will just give you a black screen as it has fewer shades of black available to it. An example would be a game like Doom3 in some of the darker areas you can still see what is going on with a CRT without having to modify your settings (like gama) while playing. Another good example would be skin tones. Note that your image source needs to be a high quality source for these differences to be noticible (basically not a camera in the theatre recording of a movie).

Brightness can be an issue with some CRT projectors however that is why I have the 8500. At 1200 lumens I can open the windows during mid-day and still see the screen decently. However the quality is much better with the blinds shut. With my old 8000 I had to keep the blinds shut for it to be readable which is a little strange as they both have the same lumens rating though the 8500 definately looks brighter even at 50% brightness.

Now many people will not notice this stuff but I am kinda a Home theatre nut. However it is a common saying amoung fellow home theatre nuts that once you go crt you can never go back =P.

Here is a link with the specs on the whole electrohome series http://www.crtcinema.com/ehomespecs.html
CRTCinema is a great site for info on the different CRT projectors.

12-29-2004, 02:54 PM	#27 (permalink)
Nocuous Upright	The main image differences are resolution and contrast. The typical contrast of a CRT is 25,000:1 where some of the best DLP are 3000:1 a very noticible difference. A similar comparison would be to look at the difference between LCD monitors and CRT monitors. The pixels on an lcd are easily visible at all times, even the high quality dell 1600x1200 ones always have a little bit of a squared pixel look to them where a good CRT has less noticible individual pixels. Same is true with projectors when comparing DLP to CRT. The image quality from DLP has a little bit of a non anti-aliased look to it. The contrast difference is most noticible when playing computer games or watching dark movies on the projector. Where the DLP will just give you a black screen as it has fewer shades of black available to it. An example would be a game like Doom3 in some of the darker areas you can still see what is going on with a CRT without having to modify your settings (like gama) while playing. Another good example would be skin tones. Note that your image source needs to be a high quality source for these differences to be noticible (basically not a camera in the theatre recording of a movie). Brightness can be an issue with some CRT projectors however that is why I have the 8500. At 1200 lumens I can open the windows during mid-day and still see the screen decently. However the quality is much better with the blinds shut. With my old 8000 I had to keep the blinds shut for it to be readable which is a little strange as they both have the same lumens rating though the 8500 definately looks brighter even at 50% brightness. Now many people will not notice this stuff but I am kinda a Home theatre nut. However it is a common saying amoung fellow home theatre nuts that once you go crt you can never go back =P. Here is a link with the specs on the whole electrohome series http://www.crtcinema.com/ehomespecs.html CRTCinema is a great site for info on the different CRT projectors.