important green screen shoot....help

J

JoeyG123

Active member
Hi All,

Im shooting an important section for a music video in a green screen studio on sat, i have achieved good results from the hvx shooting green screen work before but was wondering if anyone has any recommendations on scene file settings to bring the best results,

thanks in advance, all responses welcome,

Cheers,
 
i need to know this as well, i have a green screen shoot the saturday after next.

and is 1080 PA the best to record in?
 
1080 24pa
B Press
NO DETAIL BOOST

Using minus green gell in the backlight can help pull a better key if your using primes... just helps spill in softer parts of an image.

If stock lens you should be fine with most settings if you light and shoot properly for chroma keying.

That's when the better post production tools you have produce the best results.

In a nutshell the most detail with the least amount of spill = best results.
 
The best Keying tool in my Toy Box is KeyLight (AEFX). It does a great job.

Currently I am working on a 720p production with key results that are blowing everyone away. Must admit that I shot and lit the source & bg very well so I had no problems at all to deal with.
 
I agree with THX-1138 that you don't want any detail boost,
and that you should shoot at 1080. As far as the frame-rate goes,
however, I would aim high. If the final result will be edited
to 30p, then shoot 30 instead of 24. Motion blur is not your friend.
Keep you exposure short (check out filmcam mode).

As you probably know, light the green-screen as evenly as possible,
and keep it as far behind the talent as possible.

When you're ready to key, blur the chroma on your 4:2:2
DVCPRO-HD footage in order to fake 4:4:4. Check out
the possibility of compositing outside your keyer so you can CC
the foreground.

Good luck on your shoot!
 
I'm currently working on a short film for Tropfest and all I can say is shoot at 1080.
It seems to hold more color detail.

cheers
 
any suggestions on the best shutter speed that will avoid motion blur? i normally shoot at 180 or slightly higher (for my regular non-greenscreen shoots), but not by much.
 
FilmBoy77 said:
any suggestions on the best shutter speed that will avoid motion blur? i normally shoot at 180 or slightly higher (for my regular non-greenscreen shoots), but not by much.
Click to expand...

In filmcam mode, exposure goes from 10° (short) to 350° (long).
180° is typical: at 30p that would make your exposure 1/60 sec.
You can get less motion blur by going for a shorter exposure,
for example 90° (which would be 1/120th sec at 30fps).

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When lighting subjects my DIT request we but a 6x6 black behind the actor temporarily to see the actual lighting conditions. It also helps him separate the background and tweak his scopes.

Also you can change white shading (I dont think you can do that in a hvx200) to even out edges for cleaner key. DO NOT play with white shading if you dont know what you are doing, get a DIT to do it for you.

It works pretty well for us.
 
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