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Capture ProRes @ 720×480
Anyone know if it’s possible to capture ProRes 422 in a 720×480 frame size? Even if I set the capture settings to that size the resulting captured video is still 720×486. Using a Kona 3 to bring in tape based material. Long story why this is important but briefly we also pull a lot of video off DVD which is 720×480 and we want to stay in that frame size. We have tons of archived video in the DVCPro50 codec which is also 720×480. Thanks for your help!
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16 Replies
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Philip,
You are trying to capture to ProRes, and you say it is “tape based material,” but you fail to say what tape format? If you want a precise answer that’s important info.
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, and Indie Film & Documentary forums.
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Capturing Beta and Digi Beta with a Kona 3. I can capture DVCPro50 from these decks @ 720×480 but no ProRes. Is there something I’m missing in the FCP capture settings besides setting the frame size to DV?
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Both BetaSP and DigiBeta are in fact 720×486, not 720×480, so I believe capturing either format as 720×480 would have to be treated as a down-convert rather than a straight capture. I suggest that you check out the AJA manual for that to see precisely how to set the AJA Control Panel to do the job.
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, and Indie Film & Documentary forums.
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Hi Bob,
To get what you want you need a capture preset that is not available.
You may try to duplicate the AJA 525 29.97 Proress Capture preset and change the Frame Size.
If its works..
Rafael(and here some clips for the friends: https://www.vimeo.com/2694745 )
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Never had to make any adjustments on the Kona control panel when capturing same sources to DVCPro50. Not sure why it would be different with ProRes.
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Thanks. I’ve tried duplicating the ProRes preset and changing the frame size to DV(720×480). FCP seems to ignore and capture at 720×486. Is it possible that this codec is somehow locked at the D1 frame size when capturing? I know I can transcode into ProRes and make the frame size 720×480 using MPEG Streamclip or Compressor.
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[Philip Ohler] “I’ve tried duplicating the ProRes preset and changing the frame size to DV(720×480). FCP seems to ignore and capture at 720×486. Is it possible that this codec is somehow locked at the D1 frame size when capturing? “
Even if you change the Frame Size in the capture Preset, in the “Digitizer input” you still having 720×486.
Is not a matter of the codec. Is the capture preset, and I’m afraid this can be only changed by AJA.
In PAL land we have no much problem capturing DV as Proress. We need just a Shift-fields.
But in NTSC the 480/486 is a real issue.
I don’t see much worth in going DV 480> ProRess 486> Proress 480.
The benefits or working with Proress would be killed in this two re-sizing operations.
I would capture native DV (DV50) and edit in a 720×480 lower first sequence.
rafael(and here some clips for the friends: https://www.vimeo.com/2694745 )
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[Rafael Amador] “To get what you want you need a capture preset that is not available.
You may try to duplicate the AJA 525 29.97 Proress Capture preset and change the Frame Size.
If its works.. “NO NO NO
you cant do that, the formats are prescribed by the compression the same way HDV is 1440x 1080 and 720p DVCPROHD is 960×720.
There is NOTHING Wrong with your picture, all DV is 720×480 as is all DVD materials, there is no need for the extra 6 lines of “overscan” and they will be eliminated when you do your compression after editing.
Do Not under any circumstances change the capture frame size to anything but what is a compressor native frame size.
gary adcock
Studio37
HD & Film Consultation
Post and Production WorkflowsInside look at the IoHD
https://library.creativecow.net/articles/adcock_gary/AJAIOHD.php -
So Gary what you’re saying is 720×486 is ProRes’s native SD size and there’s no way of changing to 480?
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Was just to experiment a little:-)
Rafael(and here some clips for the friends: https://www.vimeo.com/2694745 )
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