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desqueeze anamorphic footage

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Matthew Charof
desqueeze anamorphic footage
on Sep 19, 2017 at 4:20:33 am

Hi there,

I just shot Alexa anamorphic at 2944x2160 and I'm trying to figure out how to make proxies and desqueeze for editing in premiere pro. Could anyone tell me how I can find out what my aspect ratio will be?


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Chris Wright
Re: desqueeze anamorphic footage
on Sep 19, 2017 at 12:06:21 pm

Select them in the bin, right click and choose Modify>Interpret footage.

quote is from arri rep.

2944x2160 is a ProRes format with black padding left/right, the active image is 2880x2160.
Did you shoot with anamorphic lenses all the time?

Currently there are two way depending on your lens choice:
a) 4:3 2.8K with anamorphic lenses
- set your project resolution to 2048x858
- set Input scaling preset to "Scale full frame with crop"

Since the 4:3 is way too wide for 2.39 we need to do two things: crop & scale.
for the 4:3 2.8K shot set sizing "Zoom" to 1.142 (2944/2578) and "Height" to 0.5 to squeeze the image.
Now you can edit your 2048x858 next to this shots.

b) 4:3 2.8K with spherical lenses
(you will loose image information since the image is 1.8x the height of your timeline (2048x858)
- set you project resolution to 2048x858
- set Input scaling preset to "Scale entire image to fit"

Now we need to re-fit the image
for the 4:3 2.8K shot set sizing "Zoom" to 1.79 (858/2160*2880=1144; 2048/1144= 1.79)
By adjusting you can reframe on the vertical axis (entered value is pixels).
Again, you can edit your 2048x858 next to this shots.

The supported workflow allows attachment of Proxies with other frame sizes & PAR (pixel aspect ratio) combinations that are divisible by the Full Res clip (for example, 1920x1080 1.0 PAR Full Res and 960x540 1.0 PAR Proxy or 1440x1080 1.33 PAR Proxy), but other parameters such as fielding, frame rate, duration, and audio channels must match. Mismatched audio channels results in warning dialogs and are not allowed.


https://helpx.adobe.com/premiere-pro/kb/ingest-proxy-workflow-premiere-pro-...

good walk through
https://blog.frame.io/2017/03/20/premiere-pro-proxies/


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