Wednesday, May 12, 2010

Re: [Avid-L2] Re: OT: FCP and color levels

Thanks Oliver,

> Check and see if the gamma settings in FCP affect this.

Where should these be located?

> They will if it's
> animation codec, but shouldn't if it's ProRes or uncompressed.

This was Uncompressed.

>> Is there any way around that in FCP?
>
> I don't think so.

So that basically means that FCP cannot handle properly leveled QT video?

> Not sure about BMD, but in general, FCP adjusts levels inside the interface to
> look right on a computer screen.

That makes sense. I'm pretty sure Avid does that too. But in FullScreen
Mode, you get to choose what type of display is attached, a 709 calibrated
TV, or a computer screen (full swing).

> So the only correct level is what comes out
> the hardware.

But the BMD card is the hardware. HDMI is not 0-255 by definition, is it? My
BD players send out 16-235 over HDMI, AFAIK.

> The scopes in FCP are accurate, but only relative. So their
> 0-100 range don't necessarily relate to 16-235.

Yes, those internal scopes did not tell us much.

> I presume the HDMI setting is designed
> to go to a computer display

That would be a major design flaw, since, for example, most home theatre
projectors would be calibrated for 709, and would expect that signal over
HDMI.

> and may be jacked around because of this. There
> may be settings for this in the BMD control panel.

We found none, which is why I'm asking what we might have missed.

Again, thanks for your reply.

--
Job ter Burg
film editor - NL

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