Not true. The 720x486 is the active picture area and does not include vertical and horizontal blanking.
--- In Avid-L2@yahoogroups.com, "Tom McDonnell" <ltr54@...> wrote:
>
> >But possibly the fear of down conversion softness is
> why they shot SD for an SD spot.
>
> So shoot 16x9 to future proof, protect for 4x3 and extract a 4x3 center-cut.
> Still better looking than shooting 640x480. After shooting so much HD,
> framing 4x3 feels so claustrophobic. Now shooting 6x6 with a Hasselblad is a
> totally different matter...
>
> The reason NTSC on a computer is 640x480 is because computers use square
> pixels. The smaller raster is really the true imaging area for NTSC once you
> take away the electronic blanking and sync pulses that use up part of the
> 720x486 raster.
>
> Tom McDonnell
> Cinematographer/Editor
> Weisscam Hi-Speed Tech
> Los Angeles, CA
> New Orleans, LA
> 818-675-1501
>
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