[Peter Crawford]

Thanks walter

So editing on premiere on a mac pro ouput to a grading monitor set to rec709 via black magic intensity pro.
I grade using the waveform monitor on my broadcast monitor.

I usually transcode to prores via streamclip or compressor (on my imac)
Transcode final to H.264 for web delivery.

Everything looks great on my grading monitor, and fine on playback on my main editing monitor(not calibrated)

If played back on my 2007 imac (snow leopard) with (vlc, quicktime, streamclip) it looks overly contrasty and dark whether set at gamma at 2.2 or 1.8.

The same issue on my colleagues later model imac via vimeo

If viewed on others p.c’s via vimeo it looks very light and washed out with little contrast.

I know that theoretically I should trust my grading monitor but if most people are viewing my work on web with varying results, this is a concern.

Thanks
Peter

paxpincer

[Peter Crawford]

Thanks walter,

Oh O.k so no real need to bother with colour management in my circumstances.

I was under the impression that AE Works in RGB values so when rountripping this might cause some discrepencies in color values compared to my (YUV?) values in premiere.

The reason ive been looking into this is beacause im getting varied results when my exported work from premiere is viewded on different systems.

Everything looks good on my grading monitor on my macpro, but really dark and oversaturated on my and others imacs and really washed out on peoples p.cs..

Its a horrible thought that people might be watching my work thats looks under/over exposed and not the way I intended it.

FYI am usually working in prores and transcoding via ext application to h.64.
Maybe im just experiencing the notorius prores gamma shift?

On that note, when should I have gamma correction on ‘none’ as opposed to ‘auto’ on setup and export?

Thanks again

Peter

paxpincer

[Peter Crawford]

Thanks, yeah scaling in fcp was crap

paxpincer

[Peter Crawford]

Hey thanks for the reply, I guess what Im asking is if premieres’ inbuilt scaler is any good?

thanks

paxpincer

[Peter Crawford]

Hey, thanks.
Can you explain why on both my prem waveform and ex monitor i cant see the waveforms peaks and dips outside of the 0.3 to 100 range. It seems to clamp and crush everything which makes it hard to read accuratley.
I dont have any BSafe filters on that im aware of.

Thanks
Peter

paxpincer

[Peter Crawford]

Hhm, a pretty vague answer.
Im using my scopes, but my question is..does crushing blacks to add more contrast still keep me briadcst safe?
Is it just that im sacrificing detail in my shadows but still safe for broadcast?

Peter

paxpincer

[Peter Crawford]

Hey, did you find an answer to this?

paxpincer

[Peter Crawford]

Gottya, thanks

paxpincer

[Peter Crawford]

But didnt you say earlier that fcp hasnt changed the way its gamma shifts?
Maybe it is best to get fcp 7 running until I can afford a proper external display setup. I have a nice Pana grading monitor but its only going through a display port so I dont think I can trust that much more than the canvas viewer anyway

thanks

paxpincer

[Peter Crawford]

Thats good to know, I have read numerous claims that fcp7 had changed this and didnt apply the shift but thanks Ill tske your word for it snd save myself the money there.

Just one more question, since Ive used FCP ive pretty much always transcoded to pro res for my work.
Only now where ive been doing some research on this gamma issue have Idiscovered that prores is 2.2.

Im assuming everything ive graded in the past has been wrong,
Can you confirm if im using prores in fcp then i need to enable/disable a gamma setting in the clips info or the sequences compression settings in order for it to display properly.

Thanks

Peter

paxpincer