Re: 2.35 matte

[Ryan Collier <rcollier(at)postcentral.com>]

Crop top at 90, bottom at 91.

See previous post below:

Cheers,

Ryan Collier
Avid|DS Artist

~ The Past is Prologue ~


Subject: Re: 16:9 Help....Square guy in Letterbox Quag
From: spencer <spencerhecox(at)sbcglobal.net>
Date: Mon, 29 Aug 2005 15:31:33 -0700


Here is how I figure the math.
Once you build crops you can save them to your factory presets an you
won't need to build them again.
So it's not that big of a pain that DS doesn't do it for you.
For you NTSC 16:9 you'll want 720x405
Here is why:

1920 by 1080 is a 16:9 Image ratio (not pixel ratio... that is
different)
So...
1920 / 1080 = 1.777778

For HD 1080
1920/1.777778 = 1080
1920/1.85 = 1037.838 (or 1038)
1920/2.35 = 817.0213 (or 817)

For NTSC
720/1.777778 = 404.9999 (or 405)  (486 - 405 = 81 This is why you need
a 40 and 41 crop of the top and bottom. You can do this same math to
the others to find their crops.)
720/1.85 = 389.1892 (or 389)
720/2.35 = 306.383 (or 306) (Taking 90 and 91 off your image would look
more like a 2.35 crop... which isn't 16:9)

These ratios should work for PAL, DV and HD 720 formats as well.

Also these crops are individual effects. Your Graphics sessions will
not respect them. You will have to be sure your titles and graphics
remain within the cropped area.

_spencer

On Nov 8, 2005, at 7:19 PM, Igor Ridanovic wrote:

Does anyone know the crop numbers for 2.35 matte so I don't have to  
calculate them?

--


Igor Ridanovic
__________________________________
Kappa Studios, Inc.
3619 W. Magnolia Blvd.
Burbank, CA 91505

(818) 843-3400  (818) 559-2418 fax
http://www.kappastudios.com


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