>>> [EMAIL PROTECTED] 09/11/05 3:28 PM >>> <lots of snippage>
> Right, but distance has an impact on perceived size. Therefore, > if you view an HDTV (i.e. 1080p at 1920x1080 or 720p at > 1280x720) show on a 61" TV from 60", you're close enough to > see individual pixels. If you view the same show from 120", > you're far enough from the screen that you won't notice the > individual pixels, so it will be a much better picture. Ok, fair enough. I can see that logically... > However, since SDTV (NTSC, which is typically considered > about equal to 640x480) has exactly 1/3 the pixels of 720p > and almost 1/7 the pixels of 1080p, watching an SDTV show > on a 61" TV from 120", you'll be able to see individual pixels. > When you combine that with the visual artifacts that result > from losses in the analog signal, the show picture quality > will seem far worse than watching that same show on a much > smaller TV or from much farther away. Ok. I understand it now. Now I just to convince my wife to let me drop the cash for the projector or a much larger LCD or some kind of slim TV... > It's about like taking a picture with a 640x480 camera > and trying to print it at 8 1/2" x 11". If you look at it while > holding it in your hand, it doesn't look very good at all. If > you hang it on the wall and view it from a much larger > distance, it doesn't look bad. And, a 3.2MP or 4.0MP > image printed at 8 1/2" x 11", will look good even upon > close inspection. I agree up until the 3.2 - 4mp camera. I have a pretty good 5mp camera, and my regular 35 mm Nikon still blows it away. I think a 10 - 12mp camera would give about the results of a decent 35mm film camera. > Note that with EDTV/DVD (480p at 640x480 or 704x480), > you'll still have the problem of low resolution, but since they > are digital formats, the image should be clean (until the point > where signal quality drops too much and you have too many > errors to get any picture at all). Therefore, EDTV/DVD > requires a smaller TV or a larger viewing distance than HDTV, > but can generally be considered somewhere between HDTV > and SDTV for recommended screen size/viewing distance > combinations. Totally agree. EDTV (to me) seems like an almost total waste of money. I tried one out, and was not impressed. Returned the TV the next day. <snip> > Here are a couple of buying guides that take the source of > the material into account when determining TV sizes: > > http://money.howstuffworks.com/tv-buying-guide1.htm > http://www.myhometheater.homestead.com/viewingdistancecalculator.html > (you need to read the section "Interpreting the Results" on this page to > understand the data) > http://reviews.cnet.com/4520-7608_7-1016109-2.html > (they use "Wide-screen" to represent DVD/HDTV > source--read the descriptions) These are pretty good links...I'll have to bookmark them! Paul
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