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wide angle vignette fix
I’m new to the forum and AE and need some help.
I’ve edited a 10-minute piece that was shot in PAL 4:3. The DP often used a wide angle adapter with a wide angle lens which created some vignetting, but only in the lower left corner. It’s just off-screen in regular scan but is apparent in underscan. Since this show will go to DVD and will often be projected and shown from laptops, I want to mask out the little black triangle in the corner. And since this show may be combined into a series with some others to be shot in the future, I want to simulate 16:9 (and have the later shows shot 16:9). My thinking is that it’ll be better to have some standard aspect ratio rather than just chopping off the bottom 8%.
One option (I think) would be to just add black bars to the whole show at top and bottom. This I can easily do in real time in my editor (Media 100 XL 4.5). OK, you can stop laughing now. The problem with the easy fix is that for most shots the vertically centered cropped framing will suck. So I’m thinking I could use AE 6.0 to reposition each shot for optimum framing with a 16:9 positioned black mask (which i guess I could lay down in Media 100 or do in AE). This should look like a letterboxed 4:3 on standard monitors, right? But wouldn’t that create a problem if viewed on a 16:9 monitor?
Can anyone offer help on how to best fix this?
Thanks & sorry for the long-winded first post,
Pete -
2 Replies
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Well the first challenge is to reconform your edit in AE becuause you’re going to want to repo each shot for the 16:9 version. This conform would sit inside a second comp that would have a rectangle mask over it to the 16:9 dimensions. It’s a complete bear to do. Really if you have something like FCP, it’s easier in that. At least on the G5 I have, FCP using the widescreen filter is realtime and has an offset parameter to repo the image to best fit the new cropping.
If you feel like doing it in Shake, I made a handy macro node that does this as well if you want it.
Chris Smith
https://www.sugarfilmproduction.com -
Thanks for your reply, Chris. I did a test in AE and it worked, but as you say, it’s a bear. Maybe I’ll try your generous offer of the Shake macro. I have Shake 3.5, though I’ve never used it.
My email is heathcur at yahoo dot com
Thnaks again,
Pete
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