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In Reply to: which tv to buy, 36xbr450 or KP53HS30 posted by Maxwell on October 12, 2001 at 05:52:41:
It sounds like you are comparing apples and oranges. One is a direct-view set and the other is a RP set. I think the decision may come down to whether you want size or picture quality.In my opinion, the direct-view set will give you superior picture when calibrated properly (factory settings on Sony tubes are way too bright). This will be an advantage if your viewing distance is short. If you are in a larger room and the viewing distance is greater, then the RP set may be more suitable.
One study I read suggested that vertical size of the screen be about 1/3 to 1/2 the viewing distance. That may seem a bit too close, but the new DTVs have such a dramatically improved picture quality that it really does work. I often enjoy watching my (relatively) diminutive 30" widescreen direct-view set from about 4 to 5 feet away.
Follow Ups:
I am having a problem understanding your "1/2 to 1/3 viewing distance"
The best formula for viewing distance for a high scan and hd projection sets are 2x the diagonal dimension. This is because the internal line doublers/quadruplers create finer scanlines on ntsc signals, and virtually nonexistent scanlines on hd broadcasts.i.e. 61" set, ideal distance is 61"x2=122" or about 10 feet. From
my personal experience, minimum is 9' to about 11' max
53" set, 53x2=106" or about 8.8 feet +/- 1'
The idea is that the DTV resolution is good enough to give you relative screen size perspective comparable to movie theatre screens. For example, on a (small) 30" widescreen set, the actual dimensions of the screen are about 26" x 15". Multiplying the vertical dimensions by factor of 3, you get 45" or about 4 feet. So, the optimum viewing distance for a 30" widescreen is about 4 feet. Now, that seemed too closely to me at first, but after trying it out myself, I became convinced that it actually works. So, for a person viewing the TV from 10' away, the larger RPT unit is probably a better choice.
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