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DVCPro 720p24 to HDCam 29.97
aarrrggghhh… here’s the deal,
i have a project shot & edited on DVCProHD 720p24. looks great. need to deliver 1080i/29.97 HDCam.
since i’m living in KONA 2 land, i used compressor to crossconvert to 1080i/29.97 8bit uncompressed. yes it’s a long render, but it looks really good (the client was oohing & aahhing) and surprisingly there were no pulldown issues.
we take the spot on DVD to their facility to output from their FCP system (they have a system fast enough to run a single stream of 8bit HD). it looks great, it even looks great on the output monitor coming out of the HDCam deck.
all is well… not.
i do a little QC on my own and watch the spot on air & boom, there’s suddenly a pulldown issue.
is this a job for (the not yet purchased) “nattress standards conversion” or is there something else i’m missing?
thank you for the help & glory to the cow,
eric
e. eric johnson iii
er**@*********er.net
LILL MONSTER MOTION PICTURES
producer-director-cameranow in principal photography – START 2 FINISH: What It Really Takes to Race A Bike
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3 Replies
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Unfortunately, you can’t avoid frame rate conversions in the hope that they will fix themselves, as you now know.
If you’re going from 23.98 to 29.97, the best way to do that is by adding a 2:3 pulldown to it. Compressor and FCP just duplicate frames which makes the video stutter.
One way to do it is through the Nattress Standards Converter.
https://nattress.com/Products/standardsconversion/GFilmConvert.htm
Another way is just to let your Kona card do it when it outputs. It can add a pulldown to 23.98 video. If you DVD place has a Kona or Decklink card, just cross convert to 1080/24P and lay it off to tape as the card adds the pulldown (converting it to 29.97).
-Russ
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[Russell Lasson] “f you’re going from 23.98 to 29.97, the best way to do that is by adding a 2:3 pulldown to it. Compressor and FCP just duplicate frames which makes the video stutter.”
correct,
Apple only uses the Sony pulldown standard which is 2:2:2:4, I personally hate it since they could control it if they chose too.gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows -
hi russ & gary-
thanks for the reply!
after a few hours of going nutso, i broke down & invested in nattress conversions (i’ve found anything nattress is a good investment) and after implementing the conversion and to my surprise, that wasn’t it.
it turns out that it’s probably a setting on the HDCam deck (is this a smackdown from sony?). then we took a shot in the dark and added a FCP deinterlace filter on the output G5 and that did the trick?!
prior to delivery i checked the output on SD & HD monitors (progressive & interlaced) and the problem wasn’t there. i couldn’t even re-create it on my system. i have 3 more spots to deliver so i hope to get to the bottom of it on the next trip over.
again, thank you & glory to the cow.
eric (formerly waterboy)
e. eric johnson iii
eric@lillmonster.net
LILL MONSTER MOTION PICTURES
producer-director-cameranow in principal photography – START 2 FINISH: What It Really Takes to Race A Bike
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