[opendtv] Re: Olympics HDTV
- From: "Stephen W. Long" <longsw@xxxxxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Thu, 02 Feb 2006 12:20:22 -0500
It is the TEMPORAL rate of film that adds the majority of the film look.
When you take the Panasonic variable rate progressive camera and crank it
down to 24 Hz, it suddenly looks like "film." Pixel counts the same, only
the frame rate changes. Very strange look below 15 Hz (you see spirits
walking around). TV look at 30 Hz. Very noticeable change at 54 Hz -
720p/60 looks better than it should because of 60p. 720/50p does not look
nearly as good as does 60p. SWL
At 01:02 PM 2/1/2006 -0600, you wrote:
>Manfredi, Albert E wrote:
>> Speaking of HDTV, I noticed two interesting things yesterday evening.
>>
>> First was that there's a huge difference between live HDTV and HDTV from
>> (I assume) film. I was flipping between NCIS (CBS) and American Idol
>> (Fox). American Idol looked incredibly sharp and bright, almost like a
>> sparkling jewel. It was gorgeous. By comparison, NCIS was sort of dark
>> and murky, at least in the scenes I happened to catch. Decent sharpness,
>> but not spectacular like Idol.
>>
>
>
>It's the difference between three things "reality", "the film
>look" and "television". It's that simple. Film simply
>looks less "real" than (live or digitally stored) television.
>
>I'm a film person (still, color, 4x5 film) from way way back, and
>I assure you, it's rendition of reality is horrendously bad,
>especially if you rate and expose it according to the official
>ISO speed. It's better if you expose it one or two more stops
>and print accordingly. Modern CCDs are capable of far, far
>better reproduction of reality ... if that is what one wants, of
>course .. and discounts that they still don't have the resolution
>of 4x5 film. I'm talking the raw CCDs here, not necessarily TV cameras.
>
>That said, what makes TV "look" better than film is the
>overall tonal range. TV usually is made to look "peppier"
>and that's all that's necessary to tweek one's "reality"
>button, whether it really is closer to reality or not.
>
>Doug McDonald
>
>
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