2 Replies Latest reply on Jun 15, 2009 1:22 AM by Dan Isaacs

    Digital Zooming and Down-Res from HD to SD PAL

    ErikAndersenPNG

      Olgeta

      Here in Papua New Guinea, TV broadcasts in SD PAL, and my company produces some magazine style items for local news.

      We normally send one camera (Canon XL h1) which can shoot HD up to 1920 x 1080 or SD.  I am trying to work out a post production path which will allow the camera to shoot in HD (1920 x 1080 pixels) and then in post crop to a selection of 720 x 576 pixels (our SD) and then use that 720 x 576 image as an SD output (ie without the program trying to rebuild it to 1920 x 1080).

       

      The purpose is so that we can shoot (in HD) a wide shot of,say, two people on a podium, then cut it and broadcast as 3 shots, being the wide shot (simple down-res of the whole shot) and digitally zoomed medium shots of the two people - but still using 720x576 of the originally captured pixels without the computer guessing where to add more pixels as happens with a traditional digital zoom.

       

      We use CS4 Production Premium including Premiere, and if it is better done in After Effects or another part of the suite we can do that.

      Thanks

      Erik