Re: sRGB LUT

Primaries are the same, transfer curve is different.

Also, and this is very important to note, rec.709 is a camera transfer curve. It's used for encoding values in a camera, not for displays. HD broadcast displays typically use a more or less pure gamma 2.4 transfer curve (and rec.709 primaries when displaying an HD image). sRGB is a bit more complex, being on average about gamma 2.2, but with a linear segment at the bottom, and something approaching gamma 2.4 in the highlights.

But, people here are right, most players/plugins will take care of the transfer curve conversion, and expect video to be encoded as if it were for broadcast.

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Joakim Ziegler - Postproduction Supervisor