Films/DVD Asylum

some of the numbers

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tunenut

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In Reply to: Re: visual resolution posted by Bruce from DC on October 19, 2001 at 11:14:31:

There is no hard and fast number for pixel resolution of film. For 35 mm film, I have read effective pixel resolution is as high as 5000 by 3760, although I have also read that a projector may put out around 3500 by 2000. Roughly, then the range is about 7 million to 19 million pixels required to capture a 35 mm image.
Now HDTV has around 2000 by 1000 pixels. And NTSC video is 720 by 480 pixels. In NTSC, a big chunk of the image is chopped off due to the different aspect angle, but in any case, optimistically, you are left with somewhere under 5% of the information. And HDTV, while quite a bit better, is still missing 3/4 of the visual resolution.
Not to mention that you can see hundreds of movies, maybe thousands, for the price of an HDTV.

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Re: some of the numbers - Bruce from DC 16:24:55 10/19/01 (0)
Thanks for the info.
The difference is bigger than I thought. BTW, when I wrote "HDTV is better" I meant that it was better than NTSC, not better than film. When I re-read the post, I could see how it might be interpreted as saying that HDTV is better than film. Not what I meant to say.
For all the reasons you mention, my "home theater" is a 12 year old 27" NEC TV set (pretty good, actually) and a VCR of approximately the same vintage.
When the TV dies (which will be a while since it doesn't get that much use) I'll have to figure out what to replace it with. Same with the VCR -- or if video rentals move to DVD.

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