Join Chris Meyer for an in-depth discussion in this video Creating a 4:3 center-cut version, part of After Effects Apprentice 15: Creating a Sports Opening Title.
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What if a client also says that they want a 4x3 center-cut of your wide screen version? Let me show you how to do that. First thing I am going to do is add another Output Module. Choose a template to begin with, like QuickTime DV NTSC, click on it and let's edit its settings. The first I need to do is to Resize my square pixel composition to provide the non-square pixels required by DV or D1 NTSC.
And turn off the Lock Aspect Ratio and the proper pixel aspect ratio for D1 or DV NTSC is to scale to eleven-tenths. So I am going to bring up the calculator here, take 872 pixels times 11 divided by 10 equals 9595.2, best to round it up to an even number, so later on you can trim things equally off the Left and Right sides. I am going to enter 960 pixels here. That's going to give me an 11 to 10 aspect ratio.
Next, I need crop this down to the requirements of the DV output. Now to get 486 lines down to 480, you already know, crop 4 from the top, 2 from the bottom. For center-cut, we want to chop off large portions of the Left and Right sides of the screen and keep just the central portion of it, getting down to our 4 by 3 aspect ratio. So we need to take 960 pixels minus our 720 targets divided by 2, for Left and Right sides.
We need to take 120 pixels off of each side. 120 off the Left, 120 off the Right. We now have 720x480 output, and you know there is a little warning down here that we had a Settings Mismatch--went away because now we've hit our target of DV NTSC Output. So again to review, first we had to take into account non-square pixels, make it eleven-tenths wide. Second, we had to crop to get rid of the access of the wide screen, get down to the 4x3 center-cut.
The After Effects Apprentice videos on lynda.com were created by Trish and Chris Meyer and are designed to be used on their own and as a companion to their book After Effects Apprentice. We are honored to host these tutorials in the lynda.com library.
- Building a 3D world
- Working with layered Illustrator files
- Synchronizing to music
- Using text animation presets
- Rendering strategies
- Working with widescreen video, including 4:3 center cut and safe area considerations