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720×405 Why?
Hi!
Does anyone know why 720×405 is the right aspect ratio for true 16:9?
I have a anamorphic video and in some frames a circle appear. When i convert these frames to 720×405 the circle becomes oval.
But when i convert to 720×432 the circle gets it right shape.
If you multiply (PAL) 576*0.75 you get 432. Doesn´t that sounds more correct?
I appreciate all comments and help!! -
7 Replies
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720×405 is 16:9 square pixel:
16/9 = 1.78 (1.7777777777778)
720/405 = 1.78
405×1.78 = 720.9
720/1.78 = 404.9
What or where is your source from?
Generally speaking, are you working in PAL or NTSC?
What are you delivering to?
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I´m working in PAL and delivering the video as hi-res QT.
Thanks for your help! -
Ok, but 720×405 is not a PAL resolution. Where did the clip(s) come from?
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The source video is PAL 720×576 anamorphic. The client want the files as widescreen. Thats why im asking.
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Then you could give him 1024×576 square pixels, or 720×576 non-square or 720×405 square pixels.
It all depends on what your client wants to do with the material?
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Its jusy for viewing so the can se the films how they appear on a widescreen TV.
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For viewing on a (Widescreen) TV you should be delivering 720×576 non-square.
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