HD green screen.

[Martincito]

Hi Guys,

We have to shot a commercial in HD. The whole spot is in green screen.
I’ve used before Sony HD Cam and I don’t like for green screen because it has a lot of compression.
Can you tell me what is the best HD format for green screen.

Thanks

Martin

[Anonymous]

HDCAM SR. Just like HDCAM, but better and more expensive.

But I have keyed HDCAM footage before. If it is shot well it can be done.

md

[pgill]

…or hdcam straight to disk is said to work well

paul

[sinancg]

HDCAM SR is the perfect option. I have used it and keyed off skies, and other background areas without them being lit specifically. The drawback of it is it works in 4:4:4 rgb space and slows you down a little bit more.

[kuban]

sinancg wrote:

HDCAM SR is the perfect option. I have used it and keyed off skies, and other background areas without them being lit specifically. The drawback of it is it works in 4:4:4 rgb space and slows you down a little bit more.

Hey Sinan,
Why is 4:4:4 slowing you down? inferno already works in RGB colorspace. Even if you capture from a 4:2:2 source, it converts the video to RGB colorspace. Maybe it is the 10bits of pixel bit depth, which slows down processing…

And my opinion about HDCAM-SR versus disk recording: SR is very good, but uncompressed 10bit 4:4:4 disk recording is even better. But the workflow of SR is almost as easy as digibeta. You have to choose between quality and speed. If you want the best of best HD video signal, go to the disk recording way.

[Anonymous]

Hi,

If you shoot directly in HD you may consider Viper with HD output directly on HD D5 (panasonic) or Sony SR (dual link). Problem comes from the HD camera compression. And if you backup your project HD please seriously consider to backup on HD D5 or Sony SR.

[Xavier]

I vote for HDCAM-SR.

If you can’t get a decent key from SR, chances are your problems are with lighting or your keying technique, not the tape format.

Good luck.

— Xavier

[Steve_Motts]

on a somewhat related topic, what is the best D5 way to get a project that was shot on 35mm film and is finishing HD in the flame, we have a D5 deck. i have had some projects in the passed tranfered to HD D5 tape but it seems to still have that compression when you pull a key. is there a setting that the transfer company should set their D5 to in order to avoid compression?

[loops]

No, HD D5 is always compressed. Not all that heavily, though.

[Author]

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