Steve you are right just like when DV cam footage is brought into a show that was shot 720x486 with different cameras the DV footage has a few black lines at the top and bottom. To be precise it should have even numbers of lines of black to avoid field order issues depending on the software you're using. I also said I was curious why I didn't see the black lines at the top which are usually 4 lines IIRC when I viewed the ama'd clip in the source monitor. I'm still not sure about that but when I get back to my normal symphony I'll check the same clip to see.
--- In Avid-L2@yahoogroups.com, Steve Hullfish <steve4lists@...> wrote:
>
> OK, I'm over-ruled.. I still think we're missing some lines and pixels someplace.
>
> The fact that we're still looking at SD makes me sad.
>
> Steve Hullfish
> contributor: www.provideocoalition.com
> author: "The Art and Technique of Digital Color Correction"
>
> On Jan 25, 2012, at 5:14 PM, Mark Spano wrote:
>
> > Steve,
> >
> > 480 lines of resolution is SD. The math there is that .9 ratio times 720
> > equals 648 but that is representative over 486 lines. 640 is the best math
> > for 4x3 to get 480. (640 *3 / 4 = 480). And we're talking about square
> > pixels, so that math works out perfectly.
> >
> > The artful look of the square is the best reason I've ever heard why anyone
> > would shoot this way. But possibly the fear of downconversion softness is
> > why they shot SD for an SD spot.
>
>
> [Non-text portions of this message have been removed]
>
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