-
FCP vs HDCAMSR 422 Downconversion
In attempting to create a 422 downconversion of a 444 master, I noticed FCP will not render out correct levels if I drop a captured 444 file onto a 1080psf 23.98 sequence.
(Dual Link RGB 1080psf RGB SMPTE range)
If I use the HDCAMSR downconversion, the correct levels are being sent to FCP.
(1080psf 23.98 ProRes HQ)
Is this because FCP has problems rendering RGB material correctly?
-
7 Replies
-
4:4:4 and 4:2:2 are totally different coulor managements. Don’t mix it.
Sometimes I got the expression, that people think FCP is like a mixer. Throw all in and mix it through zje outcome will be miracously wonderful.Sorry, for the ironic comment, it’s not personal
Rainer
-
I barely even understand what you’re trying to say. I realize they are using different color spaces. I’m sure there is software that is capable of doing RGB to YUV conversions more accurately. The HDCAMSR deck seems to handle the conversion correctly. Granted, it is $100k worth of hardware in there. Still, I don’t think it’s unreasonable for Final Cut to be able to handle this more accurately.
-
It’s not The HDcam. I would do the whole job in 4:4:4 then produce a QT. After that I would change the Colour space to 4:2:2. Then I would make a correction for the whole show. You have to do one correction which lasts the whole show.
I hope this helps
Rainer
P.S. It is a more practical advice, because we are all fighting with these things
-
Okay, I get what you’re saying. Well, I actually am not trying to mix formats. What I could do is exactly what you’re saying. I can export the whole file as 444 RGB, then convert to 422 YUV. How do you suggest I make this correction though? Using color correction, or a color space conversion tool of some kind?
-
I would use colour, but only when you have got monitoring with colour. Coulor works in 4:4:4, so its the best choice.
Otherwise I would use colorista (Magic bullet), which is a very good tool, the looks are great.
If you haven’t got colorista, go with FCP colour correction together with procamp filter.
Use Proc amp first, then 3Way coulor correction.I hope this helps
Rainer
-
[Duke Bishop] “Is this because FCP has problems rendering RGB material corre”
FC can only renders 8b while in RGB.
rafael -
I’d use the SR deck every time. Fast, accurate, no doubt.
FCP is an editor with add on packages to tweak stuff in. It does well at what it is and has extremely useful tools, some of which take a lot of time to get right through test/fail test again till it’s right, by God I hope I left breadcrumbs to follow how I did that.
HDCam SR is perhaps the best Video/DATA storage device available.
Go with what works.Doug Beal
Editor / Engineer
Rock Creative Images
Nashville TN
Reply to this Discussion! Login or Sign Up