All my color correction starts with 16-235 master curve and then I color correct from there. In the end I use safe color set to 422, 16-235 and I've had no QC issues. Not sure what inconsistencies you are see but there are always some specular excusions that can set off the Tek alarm when the error area parameter is set to 1 percent. I agree 16 to 235 might be aggrerssive but it generally gets thing through the QC jungle. I also stop at every stop sign and red light in California, so maybe I'm too cautious. No one at home is complaining.
--- In Avid-L2@yahoogroups.com, Dylan Reeve <dylan@...> wrote:
>
> As a slight tangent to this then - what are you using to legalise video for
> file-based delivery?
>
> I've found the Avid Safe Color effect to be, uh, inconsistent. Although
> applying a Color Correction with 16-235 levels set on the curves does seem
> to work, it also seems a little aggressive?
>
> Every single clip I've put through Resolve comes out peachy - so I did
> consider rendering everything trough that.
>
> I'm checking with a Tek WFM5000 scope.
>
> Dylan Reeve
> http://dylanreeve.com/
>
>
> On Thu, Apr 4, 2013 at 11:52 AM, jeffsengpiehl <jeffsengpiehl@...>wrote:
>
> > **
> >
> >
> > There's really no reason not to put eyeballs on it- Tho I've found some
> > deliverables (XDCAM 50 at 60FPS) won't AMA, so FCP playout it is.
> >
> > JDS
> >
> >
> > --- In Avid-L2@yahoogroups.com, "johnrobmoore" <bigfish@> wrote:
> > >
> > > I still like to take my file and ama link and play back through my
> > tektronix scope with error log running. I feed LTC out of avid so it can be
> > logged by time code. Cerify and other file based apps can be used but I
> > haven't been able to spot level issues with the accuracy I can through the
> > traditional HDSDI analysis. The apps do look for data and format errors
> > unique to files so they are valuable too but when it comes to levels of
> > video I prefer to rely on the scope. Usually I've found a sequence that is
> > in spec out of the Avid rarely has level issues introduced when exporting
> > the file as long as I export a QT ref our of Avid and Use QT Pro to make
> > Prores delivery files. Of course with the myriad of possible file creation
> > workflows a pandora's box of problems can arise which is why I still like
> > to link back ama to the file and play it down through Avid to check the
> > actual essence of the file. It has been my experience and understanding
> > that an ama link bypasses the QT engine now and I hope other aspects of
> > file processing to avoid being fooled by an misinterpreted file level. The
> > classic confusion of RGB vs. 601/709 seems to be the most common mismatch.
> > With ama I get to see the actual essence levels as I understand it. HTH
> > >
> > > --- In Avid-L2@yahoogroups.com, Steve Hullfish <steve4lists@> wrote:
> > > >
> > > > Or come visit the booth I'll be at at NAB and check out Tektronix
> > Cerify. It does QC on filebased delivery. File-based content analysis.
> > > >
> > > > This does exactly what you are asking for
> > > >
> > > >
> > http://www.tek.com/file-based-content-analyzer/cerify-video-content-analysis
> > > >
> > > > (Disclaimer: I am an occasional vendor to Tektronix)
> > > >
> > > > Steve Hullfish
> > > > contributor: www.provideocoalition.com
> > > > author: "The Art and Technique of Digital Color Correction"
> > > >
> > > > On Apr 3, 2013, at 1:33 PM, jeffsengpiehl <jeffsengpiehl@> wrote:
> > > >
> > > > >
> > > > > Not a scope, but there are applications that will process the file
> > and find issues like those. I'd recommend Aurora By Digi-Metrics
> > > > >
> > > > > JDS
> > > > > --- In Avid-L2@yahoogroups.com, Jeff Hedberg <jeff@> wrote:
> > > > > >
> > > > > > I tried searching the group for this - but I'm clearly using the
> > wrong search terms.
> > > > > > Didn't someone recently mention that there is a waveform monitor
> > that is able to check file based deliveries for issues like - 2 mono tracks
> > instead of a stereo, or bitrate too low, or other 'gotchas' with shipping
> > master files instead of tape for broadcast? (thank heavens files are so
> > much better than tape)
> > > > > >
> > > > > > I thank the L-2's collective memory in advance.
> > > > > >
> > > > > >
> > > > > > Jeff
> > > > > >
> > > > > > ------------------
> > > > > > Jeff Hedberg
> > > > > > Union Editorial
> > > > > > 575 Broadway
> > > > > > 6th floor
> > > > > > New York, NY 10012
> > > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> >
> >
> >
>
>
> [Non-text portions of this message have been removed]
>
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