There might be some confusion between source media, postproduction and distribution color spaces.
Many cameras, NLEs and broadcast entities typically work in a Rec709 YCbCr 4:2:2 color space where the chroma components are sampled at half the rate of the luma channel in order to reduce bandwidth. This subsampling is largely invisible to most viewers.
Avid's RGB 709 Project Type does not discard any of that chroma data and the resulting image typically looks sharper, and effects that rely on that color data (Chromakey for one) perform significantly better. However, the old adage: "Garbage In -- Garbage Out" still applies.
While this RGB 709 Project Type preserves the original source media quality through the Avid pipeline, it does so at the cost of higher storage, bandwidth and processing requirements.
So, in short, there is no need to work in an Avid RGB 709 color space for web-based content.
Your question has more to do with distribution/deliverables for web content. And, in this case, the best way to match the color space of your final deliverable -- to the destination medium it will be consumed on -- is to select the RGB color space option during your final encoding process (Episode, Squeeze, Media Encoder, etc).
That way, you'll be creating your final distribution media with an RGB color space -- for computers and monitors that also live in an RGB color space.
HTH
--- In Avid-L2@yahoogroups.com, Lou Wirth <loutv@...> wrote:
>
> I am creating a bunch of web videos for a company. All shot in HD. It just occurred to me, should I be creating projects in RGB color space if its web only?
>
> Lou
> Lou Wirth Productions
> 500Tamal Plaza, Suite 522
> Corte Madera, CA 94925
> www.louwirth.com
> 415-924-9411p
>
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