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Why is RED footage (.R3D) aspect wrong in Preview?

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Ron Whitaker
Why is RED footage (.R3D) aspect wrong in Preview?
on May 3, 2014 at 6:59:53 pm

I have some Red footage (.R3D) footage that I bring into SVP 12.

I drag the file to the timeline and it asks whether I want to set the Project Settings to match the footage. I've tried both yes and no.

The footage within the Preview is "scrunched." Why?

The footage aspect is 2816x2304.

I've gone into the Pan/Crop and selected Match Output Aspect.

Is it the Red footage in general? Is there something else I need to do?

Thank you.


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John Rofrano
Re: Why is RED footage (.R3D) aspect wrong in Preview?
on May 4, 2014 at 10:39:08 am

[Ron Whitaker] "The footage aspect is 2816x2304. "
Are those the dimensions of the resolution? It looks almost square! What Pixel Aspect Ratio does it use? Maybe it's anamorphic? It would need a PAR of 1.4545 to make it 4K. (I've never worked with RED footage so I'm just trying to guess what might be going on here).

~jr

http://www.johnrofrano.com
http://www.vasst.com



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Ron Whitaker
Re: Why is RED footage (.R3D) aspect wrong in Preview?
on May 4, 2014 at 2:28:52 pm

John:

Those are the actual dimensions of the footage.

I pull the footage into After Effects and it's fine after I press the PAR correction button.

How can I tell if it's anamorphic?

I take it with dimensions of 2816x2304 it would be considered 2K, correct?

I tried 1.000 square pixels and that doesn't work.

Maybe it's time to upgrade to 13.


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John Rofrano
Re: Why is RED footage (.R3D) aspect wrong in Preview?
on May 4, 2014 at 3:33:10 pm
Last Edited By John Rofrano on May 4, 2014 at 3:37:53 pm

[Ron Whitaker] "I pull the footage into After Effects and it's fine after I press the PAR correction button."
That's what I'm talking about. The PAR in Vegas Pro is not correct. If you expect the footage to have an aspect ratio of 16:9 then your PAR needs to be 1.4545 for anamorphic RED 4K footage.
[Ron Whitaker] "I take it with dimensions of 2816x2304 it would be considered 2K, correct?"
No. 2K is 2048 x 1152. It looks the the footage 4K ANA.
[Ron Whitaker] "I tried 1.000 square pixels and that doesn't work."
I'm sorry if my answer wasn't clear. You need to use 1.4545.

If you are the person who shot this footage, I think you need to learn a lot more about your camera if you thought you were shooting 2K. If you are just being asked to edit it, then make sure whoever gave it to you knows it's 4K ANA and not 2K and maybe they need to learn a lot more about their camera. If you just downloaded some footage to play around with, then that's great you are learning something new. ;-)

~jr

http://www.johnrofrano.com
http://www.vasst.com



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Ron Whitaker
Re: Why is RED footage (.R3D) aspect wrong in Preview?
on May 4, 2014 at 3:46:29 pm
Last Edited By Ron Whitaker on May 4, 2014 at 3:47:20 pm

I didn't shoot the footage. I'm just taking a class over at FXPHD in color grading and this is the footage for one of the classes.

I've actually been using AE to color grade using Colorista II, but I just wanted to bring it into Vegas, and that's when I discovered how it appears in the Preview window.

I tried changing the PAR in Vegas Project Settings to 1.4545 and that actually made it more scrunched!

Here are my settings within the Project Settings. Does everything look okay?



And here's how it appears in the Preview window:



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John Rofrano
Re: Why is RED footage (.R3D) aspect wrong in Preview?
on May 4, 2014 at 4:47:04 pm

[Ron Whitaker] "I tried changing the PAR in Vegas Project Settings to 1.4545 and that actually made it more scrunched!"
Sorry I wasn't clear again Ron. This is not my day for explaining things clearly.

You don't want to change the PAR of the project. You want to change the PAR of the footage. You also don't want the project to match the footage because the footage is anamorphic. You want to use the full 4K project template.
  1. Set your project to: 4K 16:9 24p (4096 x 2304, 29.976 fps)

  2. Right-click the event with the footage on the timeline and select Properties... Then go to the Media tab and set the Pixel Aspect Ratio to 1.4545.
This should make the footage look correct.

~jr

http://www.johnrofrano.com
http://www.vasst.com



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Ron Whitaker
Re: Why is RED footage (.R3D) aspect wrong in Preview?
on May 4, 2014 at 5:00:33 pm

OK. That seemed to work!

Thank you.

But I'm still confused as to why you'd want to set it up as 4K. It seems that this footage more closely matches 2K, and not 4K. Is it because it's anamorphic?

In the future, how can I tell if footage is anamorphic? Simply by it's resolution?


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John Rofrano
Re: Why is RED footage (.R3D) aspect wrong in Preview?
on May 4, 2014 at 7:57:33 pm
Last Edited By John Rofrano on May 4, 2014 at 8:05:22 pm

[Ron Whitaker] "OK. That seemed to work!"
Glad that did it.
[Ron Whitaker] "But I'm still confused as to why you'd want to set it up as 4K. It seems that this footage more closely matches 2K, and not 4K."
Look at the height of the footage. It's 2304. What's the height of 4K? 2304! So this footage is 4K.
[Ron Whitaker] "Is it because it's anamorphic?"
Yes. The the height of Full HD is 1080. It doesn't matter if the width 1920 PAR 1.0 or 1440 PAR 1.333 we still call it HD because it's 1080. Likewise the height your footage is 2304 which is 4K. It doesn't matter if the width is 4096 PAR 1.0 or 2816 PAR 1.4545 it's still 4K footage.
[Ron Whitaker] "In the future, how can I tell if footage is anamorphic? Simply by it's resolution?"
Yes. If it's height matches SD, HD, 2K, or 4K then that's what it is. If it's width is less less than SD, HD, 2K, or 4K then it's anamorphic (i.e., it's pixels are not square but rather squeezed vertically).

~jr

http://www.johnrofrano.com
http://www.vasst.com



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Ron Whitaker
Re: Why is RED footage (.R3D) aspect wrong in Preview?
on May 4, 2014 at 10:02:07 pm

OK. I got it now.

Thank you.


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John Rofrano
Re: Why is RED footage (.R3D) aspect wrong in Preview?
on May 4, 2014 at 11:08:35 pm

You're welcome. I learned something new too. ;-) (didn't know RED shot 4K ANA)

~jr

http://www.johnrofrano.com
http://www.vasst.com



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