The way I see it Steve867, you have two options:
1 – Letterbox the entire cut. Use a 4:3 sequence, arc the 16:9 to letterbox format, and crop the 4:3 at the top and bottom with black to give it a 16:9 look
or
2 – Scale your 4:3 shots up until you fill a 16:9 sequence.
Neither is ideal, but unfortunately there isn’t much you can do to really “convert”.
Actually, s third option I sometimes use when the above two are not suitable and I need to get rid of the black bars at the sides is to place the 4:3 shot into a 16:9 sequence twice, one directly above the other. Crop the black bars out of the top layer (feather the edges a bit), and then stretch the bottom layer horizontally to fill the width of the 16:9 sequence. Blur the bottom layer, and you can create a nice look – but it’s certainly not suitable for all types of footage or cuts.
Good luck with it!
Enzo Tedeschi
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