Scarlet Greenscreen advise

[Michael Jarvis]

Hey fellas and ladies...

I will be shooting some green screen dance shots for a music video soon. I don't have tons of experience with green screen. The few green screen gigs I have done have worked well but I would really like to max the use of this footage. This is just one element to a much bigger project...but it could be a very cool element. Can you lend me some advice on setup.

I will be using my Scarlet. I have lots of lighting (flolights, Arri Fresnels, Color changing LEDS, and maybe some of the new Arri L7-C Leds) and know how to light them properly. I'll make sure they are far enough away from the screen I don't have any spill.

The lenses I will have on set are a Canon 70-200 2.8 II, a Zeiss 50mm 1.4, a Canon 16-35, and a Tamron 24-70 2.8.

I was planning on doing most of it with the Zeiss. What is my target F stop and shutter speed I should go for to get a great key. I am thinking I should close down to about 5.6. I will be shooting at 24P...but would anyone suggest going with a lower resolution and high frame rate...or is just adjusting the shutter in 24P the way to go. How would you set your shutter? Any help, tips, or good links would be much appreciated.

ps...Title meant to say "Scarlet green screen, please advise"

 

[Andreas Mendritzki]

I'm not saying that you can't get clean key's using other method's, but if you want to be 101% sure to get a noise-free image, its good to either light at 5600K, or baring that, light the hell out of it with tungsten and through some kind of cooling filtre. Not even necessarily a full 80A tungsten-daylight, but something to get some more info in the blue channel.

My two cents.

 

[Michael Jarvis]

Thanks Andreas. I appreciate that. I have the ability to light either temp. Your input is much appreciated. I will make sure to use 5600. Just curious, what is the technical reason that daylight balanced is better for keying than tungsten. Is it because the green starts to blend more with the tungsten light and that pulls the hue of the subject closer in spectrum of the green...making it harder to key?

 

[Tim Whitcomb]

Lighting is key... but be wary of high frame rates with anything but Tungsten lights over 2K or you will have flicker issues.

 

[PatrickFaith]

Also use red code 6:1 and I would for sure shoot at4k. also do a white card on the actor so u can figure out green spill. btw moving the camera side to side with a few props in view really helps on 3d solves.

 

[Michael Jarvis]

Tim, good call on the high frame rates and flicker. Just curious...next year I will be venturing into an Epic (coming from Scarlet). It is a much more complicated process for shooting high frame rate green screen? Whats the flicker solution? Even if I am using some of the new Arri L7-c Led fresnels...would the flicker still be present?

Thanks, Patrick. Good call.