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Posted by Jukka Aho on 11/27/06 13:15
ptravel@travelersvideo.com wrote:
> "Lines of resolution" refers to the number of lines that can be
> resolved across the horizontal scan,
In particular, a length of (the active area of) horizontal scan that is
equal to the height of the (active) picture.
> VHS and 8mm are limited to around 250 lines. SVHS can do
> 400 lines. Hi8 is capable of around 400 to 425 lines (I probably
> overstated the case when I said it did 450). MiniDV can do up to
> 525 lines.
It should be noted that despite the variations in the horizontal
resolution, _all_ these formats - even the lowly VHS tapes - record both
fields and all 480 (or a little bit more) active scanlines. In other
words, all these formats record the full vertical resolution.
--
znark
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