Brad Hurley
Forum Replies Created
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Okay. I’m 90% sure Resolve uses Gamma 2.4 in its timeline (and viewers) when you choose Rec 709 without specifying a gamma. I wouldn’t be surprised if FCPX is using 2.2 since if you’re using a computer’s built-in monitor you’re likely to be viewing in an office environment as opposed to a dimly lit color grading studio. Not sure about Premiere…
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“ I then tried it in DaVinci Resolve and noticed that it’s display of the same content was more similar to Premiere Pro. The difference was very subtle. The FCP X playback window was clearly brighter and had less shadow.”
If I had to guess, maybe FCPX is using Rec 709, Gamma 2.2 for its viewer (It sounds like you’re not sending this out to a calibrated reference monitor, right?), whereas Premiere and Resolve might be using Rec 709, Gamma 2.4.
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Brandon Li has a good free short instructional video on frame rates; I think you’ll find it useful:
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I just noticed this related thread: https://forums.creativecow.net/docs/forums/post.php?forumid=344&postid=45108&univpostid=45108&pview=t
I do think it’s a gamma issue. What are you using to view the final rendered files? Whatever you do, don’t use QuickTime, which has a well-documented gamma shift problem.
Another thing to check is whether you rendered both files (from FCPX and from Premiere) to the same deliverable target — e.g., youtube or broadcast or cinema. If you rendered one for youtube and the other for broadcast, I assume they would have applied different gamma settings.
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My guess is that the two apps are using different gamma settings. Rec 709 is just a color space, but you have to consider gamma as well: Gamma 2.2 would be for viewing in brightly lit environments, like an office; it’s the right gamma for viewing online for example. Gamma 2.4 is for televisions/broadcast, which are normally viewed in a more dim environment. I think cinema is gamma 2.6, which has the lowest brightness and contrast; it’s meant for viewing in a completely dark, controlled environment.
I don’t know if there’s any way to adjust gamma settings in FCPX; it’s easy to do in Resolve which gives you a lot more control in terms of the input color space and gamma, timeline color space and gamma, and your output/deliverable color space and gamma. I’ve never used Premiere so I don’t know about its settings. But the differences you describe (one being lighter with less contrast and the other being darker with more saturation) really sound like gamma differences to me.
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To be fair, the xml for fcpx hasn’t changed in 2 years. The fact that they have a new version suggests 10.5 could be a big update.
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“That is an amazingly long release note.”
Buried in it is a hint that a new version of FCPX is in the offing: if you search for the word “Final” you’ll see a note that Logic Pro X 10.5 can now correctly import Final Cut Pro X xml v. 1.9 files. But there is no version 1.9 in the wild yet: if you look at the most current version of FCPX the xml version is 1.8.
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One interesting thing in the release notes is that it says Final Cut Pro xml v. 1.9 files now import correctly. What makes that “interesting” is that according to the Final Cut Pro xml changelog the most current released version is v. 1.8.
So at least there’s an indication that a new version of the xml is coming.
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FYI, one of the REALLY useful applications of the range tool when applying it to audio clips is to bring down levels of a particularly loud section of a clip. Just draw a range around the loud section and pull down on the volume bar so the average levels are more in line with those in the rest of the clip. This is a nice, precise way to control dynamic range without having to resort to a compressor (or if you still use a compressor it allows you to compress more lightly, with a more transparent result).
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Unless I’m misunderstanding, you can just hold down the r key on your keyboard and draw out a range on any clip, no matter where it is (main storyline or an individual audio clip below the storyline).
If you just tap the r key, you’ll be in range selection mode; you’ll need to remember to tap “a” to go back to the regular selection mode. But if you hold down the r key while you drag out your range, and then release the r key, it’ll go back to selection mode automatically.
I just tested this on an independent audio clip below my main storyline and it works.