almost twice the color information

A

Arnika

Member
Cinematographer/visual effects specialist Scott Billups wrote not too long ago an article regarding HD cameras.

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don't record to videotape. Use the serial digital output of the camera. It's always a far superior, cleaner signal than the data stream that's recorded to videotape. With the SDI signal you get almost twice the color information. This has to do with how the camera assigns the data to the codec. The method of reconstructing bits (transposition) is far more detrimental to an image than organizing the bits (compression).
So, for the cleanest effects shots, you should take that SDI signal out directly into a hard drive linked to your graphics or editing system and then print to film. Not many shooters remember this, and yet they wonder why their mattes look dull and edgy.
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Does this apply to the HVX200 ? Could some one explain if there is a difference between outputting the signal directly to final Cut instead of sending it to the P2 card ? At this level is it raw or its already compress and 4:2:2 ?

[FONT=&quot]Arnika[/FONT]
 
Kaku Ito made an interesting observation with his HVX.

He said he actually gets cleaner DVCProHD from the analog out to his Kona card, than the P2 MXF files themselves.

There might be something to be said for recording the uncompressed signal for FX shots.
 
HVXguy said:
I guess that would be great if you had a 10 mile long extension cord??
Click to expand...

For FX work that isn't that far-fetched. You get the best possible signal from your camera however that's achieved. You can extend the analog signal from the camera enough to be workable.
 
That's weird because isn't the signal already pre-processed before it spits it out over analog HD or onto p2 ?
 
What Scott was referring to was to work in the uncompressed domain at the full 995 Mbs, versus the compressed at 100Mbs. I mean once you record to tape any tape you agree to the compression that is there, be that D5HD, SR, or DVCPRO HD. Uncompressed allows for you to work with the entire signal before compression. Not so unusual, guys do it with DVCPRO50 all the time as well for the FX work and then go compressed for the rest of the work.

Keep in mind this is really for the esoteric, much of the green screen stuf that I have seen and it looked good was shot with either the VariCam or the HVX and recorded to tape, and then composited.

Hope that helps,

Jan
 
Good Results for keying

Good Results for keying

I've been getting good results by taking P2 originated DVCPROHD footage and outputting it from FCP as an Uncompressed KONA YUV file. I then pull the key in combustion. It works very well.

david
 
So, is it possible to go from the HVX via it's Analog component out into Kona card and capture directly in FCP/RAID.

IF SO, IS THIS LESS COMPRESSED THEN THAN RECORDING TO P2 @ 100 MBPS??
 
i went to an apple panasonic seminar last month and the DP said the componet out in the hvx is NOT analog. it's digital component. please explain
 
that's not what the DP said, panny has him on payroll.

edit: looked at my notes, and he definitely said, in front of a full audience with Apple pro specialist on hand agreeing,

"and the component out is digital component"
 
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AHEM -- and back we go to the topic at hand -- :love4:

If the component out is supposedly digital as the seminar speaker claimed, how could it be accepted and displayed by the component analog inputs of my HDTV?
 
If someone said that the component output was digital, they would have been wrong in that assertion. It's standard HD analog component output.
 
doondoon said:
So, is it possible to go from the HVX via it's Analog component out into Kona card and capture directly in FCP/RAID.

IF SO, IS THIS LESS COMPRESSED THEN THAN RECORDING TO P2 @ 100 MBPS??
Click to expand...

If the Kona Card has analog component inputs you can do this and that would be capturing at an uncompressed rate, 994Mbs. That is why you would need a raid.

Best,

Jan
 
nycfilmmaker said:
that's not what the DP said, panny has him on payroll.

edit: looked at my notes, and he definitely said, in front of a full audience with Apple pro specialist on hand agreeing,

"and the component out is digital component"
Click to expand...

I would have to say that Mike Caporale, who did that presentation, knows that the output is analog. He is a pretty bright guy, so somewhere in the presentation words got turned around. Sorry for the misunderstanding.

Best,

Jan
 
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