Ongoing Gamma mismatch issue

[Johnny Friday]

Guys where do I find this gamma export options setting?

I believe that they are referring to (on build 261 & 262) the export tab at the far left. Open that, then you have a variety of export options. Basically you can go to the "+" button and create your own....for example: click the "+" button, then an export setting box comes up. Then you can create your own export settings from DPX to MXF and anything between. So when you choose QT, go to Setup the next button to the right you'll choose compression type, then apple prores (the one you want) 422 or 4444 or ? below this you choose compressor and under gamma correction your choices are automatic or none. I use none. I'm assuming this is what they are talking about.

Screenshots to assist

 

[Johnny Friday]

Thanks Mike - my settings in Quicktime are to enable FCP gamma BTW.

Graeme

Graeme, are you selecting "automatic" then for Gamma settings? i read you selected none. BUT, where are you enabling FCP gamma in the export settings? I have not found this either.

 

[Johnny Friday]

Or are you referring to enabling Gamma within the Quicktime preferences and NOT RCX.

and, are you in QT 7 or Quicktime Player? I know of the settings in QT 7 to choose for FCP gamma, but in Quicktime Player, i don't see where you can find this option.

 

[Graeme Nattress]

You've got to have QT7 installed to get at that "FCP gamma" option.

Graeme

 

[Johnny Friday]

You've got to have QT7 installed to get at that "FCP gamma" option.

Graeme

I think that was confusing for some....I know of it and have QT 7 as well as QT player.....and yes, have FCP option (with in preferences of QT 7) checked. But isn't that now just standard on QT Player? Of course there are no preferences, but do you see that QT player handles Gamma same as QT 7 when FCP Gamma option is checked or do you see a difference?
Thanks Graeme.

 

[Graeme Nattress]

I'll have to do some digging.

Graeme

 

[Graeme Nattress]

Ok - this is where it gets frustrating......

In RC-X my little bit of grey is 23.1%
In QT7 (FCP on) it's 23.1%
in QT7 (FCP off) it's 26.7%
In QTX (FCP on or off) it's 26.7%
in FCP it's 23.1%

Graeme

 

[Deanan]

Ok - this is where it gets frustrating......

In RC-X my little bit of grey is 23.1%
In QT7 (FCP on) it's 23.1%
in QT7 (FCP off) it's 26.7%
In QTX (FCP on or off) it's 26.7%
in FCP it's 23.1%

Graeme

The variations in QT players and apps is something we can't fix on our end.
There's also a difference sometimes depending on how an app is requestiing files from quicktime for output via monitor or through hdsdi.

 

[Graeme Nattress]

And hardly limited to files from RED apps either - opening up a camera movie from a 5D2 it's grey reference reads as:

QT7 = 64%
QTX = 68%

As Deanan says, "The variations in QT players and apps is something we can't fix on our end."

Graeme

 

[RivaiC]

a well known quicktime problem....long live QT !

 

[bobbystone]

Well heck

Well heck

Well thats funny. I don't even have that gamma option! The only options I have for prores interlace chroma and enable 4:4:4:

Is this because i only have fcp 6?

I did figure out that i had "limit to smpt colors" which was a big part of the gamma problem. What the heck is that nightmarish setting for?

 

[Johnny Friday]

are you running quicktime 7 or quicktime x ? this is where you'll choose FCP gamma option--in the application quicktime NOT RCX. BUt be sure to choose within compression in the export settings in RCX Gamma correction "NONE".

 

[bobbystone]

QT Gamma

QT Gamma

Here's what my compression settings looks like: QT 7.6.6

 

[Johnny Friday]

thats your export settings in RCX....yes?
You need to go to Quicktime if you have version 7 and go to preferences. there you'll setup the gamma item for FCP

 

[Johnny Friday]

this is what it looks like in QT 7 under preferences....notice the checkbox at the bottom for FCP.

 

[bobbystone]

this is what it looks like in QT 7 under preferences....notice the checkbox at the bottom for FCP.

Yep, I've got that part. But I don't have the gamma settin in the ProRes export tab. Hmmm? Anythoughts?

 

[Graeme Nattress]

What version of FCP are you running, Bobby? Might that be what installs ProRes codec writing, and hence it's version?

Graeme

 

[bobbystone]

What version of FCP are you running, Bobby? Might that be what installs ProRes codec writing, and hence it's version?

Graeme

I'm still on FCP 6 But the ProRes codecs are relatively new, and even then, you'd think updates would make them consistant on such a basic element. Does anyone with FCP 6 have the gamma option on prores export?

 

[Uli Plank]

Mixing different versions of FCP, Codecs and QuickTime is never a good idea.

 

[Gunleik Groven]

I'd have thought that this nailed it...