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FCP to AE6.5 pixel aspect ratio ‘keep it native’
Dear FCP
When I export my reference movie from FCP HDV1080i PAL timeline I get an image size of 1920×1080
In Aftereffects Pro 6.5 I can make a composition 1920×1080 however when I import the movie it does not fit the frame it is too small. If I re-interpret the pixel aspect ratio to widescreen it is too big! There seems to be no correct pixel aspect ratio for this format. FCP should be Non-square 1.33:1
I want to composite some effects and then render out to the same codec for insert back into my FCP timeline. Without horizontal stretching the image which can introduce artifacts.
Do I need too upgrade again?
Many thanks drPETE
SKIPZONE FILMS
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6 Replies
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The pixel aspect ratio of HD 1080i is square as far as I know..
Try using that setting in “interpret footage”.
Kai
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A little math answers the question…
1920/1080 = 1.77 (not 1.33)
16/9= 1.77
So the pixels are square. Set interpretation to square in AE and you’ll be dead on.
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But…
When I check my factory setting for HDV it gives me the following:-
Frame size HD 1440×1080 (16:9)
Pixel Aspect HD 1440×1080
HDV is anamorphic by nature so the pixels can’t be square.
Sorry I am still confused.
SKIPZONE FILMS
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Your Maths is correct. It is spot on!
However I still can’t understand how a 1440×1080 timeline with square pixels
stretches to a 1920×1080 frame with ‘square pixels’Many thanks for problem solved it is just the principle now!
Regards drPETE
SKIPZONE FILMS
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In your first post you asked about HD 1080i …
Here the pixel format is square with a full image size of 1920 x 1080.HDV however is 1440 x 1080 using none-square pixels.
It’s squeezed on a 4:3 frame. FCP handles HDV nativ
with 1440 x 1080 and according pixel format. However
QuickTime will display HDV .MOVs with square pixels
and so After Effects … you might loose a bit of quality
by resizing the footage in AE and back to FCP but I
think this won’t be visible. -
Great. Many thanks for help.
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