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Lighting kit for Chroma keying

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Daniel Boza
Lighting kit for Chroma keying
on Jan 31, 2010 at 2:54:28 pm

Greetings. I know this subject has been talked a lot, however I have some specific questions that I haven't found an answer.

Soon I would be buying a lighting kit for Chroma. I was going to buy the Lowel Super Ambi Kit, however my budget increased and I am thinking on buying an Arri Kit. I am not going to do Chroma for ever and I want to have a good lighting kit for future projects.

But, I am a little confused with all those lights, and I don't know what Arri lights to get. My seller is offering me a kit of 4 Arri fresnel lights (2 650w, 1 300w and a Arrilite 1000 with a Chimera soft box). I think I need another light because I am going to use 2 lights for background, 1 backlight, 2 for the subject (key and soft).

So, to wrap up: What lights should I buy and how many?

Thanks in advance and sorry for the long post.


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john sharaf
Re: Lighting kit for Chroma keying
on Jan 31, 2010 at 3:21:00 pm

Dan,

You are thinking clearly; you'll really need five lights total. Two for the backing and three ()key, fill, backlight) for the subject.

My favorite method of lighting the backing is two Kino Flo 4'Twobank or 4'Fourbank. If you added these to the ARRI kit you'd have it made.

JS





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Daniel Boza
Re: Lighting kit for Chroma keying
on Feb 1, 2010 at 1:04:22 am

JS, thanks for the answer. However that's a little way out of my budget. I would like to buy maybe something less expensive. Any suggestion?


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Richard Crowley
Re: Lighting kit for Chroma keying
on Feb 1, 2010 at 2:11:55 pm

Ordinary fluorescent lamps from vendors like "Home Depot" are not normally suitable for decent videography because of their prominent green-color spike. However, for lighting green (not blue) screens for chroma keying, they are rather nice (not to mention cheap).

I have taken ordinary 4-foot "shop lights" and fastened a "baby nail" (http://www.filmtools.com/6banaonpl5di.html) on the back so I could use a regular Century stand and knuckle to position the fixtures.

IMHO, it makes an ideal way of lighting a green screen on a the cheap, leaving the majority of the budget for a proper light kit for the foreground (and for other uses).



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james weinn
Re: Lighting kit for Chroma keying
on Feb 2, 2010 at 12:18:41 pm

Hey nice to be here..,

The DataVideo CKL-100 Kit is an inexpensive and efficient kit for chroma-key applications. It is based around a dual-color (blue/green) ring light that can be mounted on a variety of still or video cameras with the included adapters. The light ring can switch from green to blue manually, or with the use of a Datavideo DVK-100 chroma-keyer (not included, but recommended.) The intensity of the ring light is controlled with a variable brightness power supply.

The ring light is accessorized with a 10 x 8' (3 x 2.5 m) cloth retro-reflective screen that is a clean backdrop for chroma-keying. This backdrop can be hung by a bar, or with hooks by using the grommets in the corners.

• Light ring switchable from blue to green .

• Dimmer control included.

• Make beautiful chroma keys with minimal attention to background.

Hope this may help us.. Be stick to basics.. will fetch us rsults for sure..

Thanks,
James.

.
tower light || portable tower light


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Hunter Mossman
Re: Lighting kit for Chroma keying
on Feb 4, 2010 at 1:23:22 am

Richard has the right idea. Go cheap on the lights for the Green Screen and spend the $ on the ARRI kit for your foreground subjects. The Home Depot shop lights are a good idea. I've taken high watt construction lights and used blackwrap and diffusion and made makeshift softbox's in a pinch before. Anything with some good punch you can soften up will work.

As for the ARRI kit. The 1K Open Face with chimera for your key. 650W Fresnel with some diffusion on a dimmer for your fill and a 300W Fresnel boomed off a C-stand for your backlight and your good to go. I like to have a couple flags to cut any spill of the background.

Good luck!

Hunter Mossman
Director of Photography
http://www.huntermossman.com


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Mark Suszko
Re: Lighting kit for Chroma keying
on Feb 4, 2010 at 6:36:34 am

Google up the keywords "Graff Lights" and Walter Graff: he shows you how to adapt domestic flos into passable softlights for backgrounds as well as a key source.

When I do chromakey shots, I use a pair of Rifa 88's on the green, and then 3-point light my talent separately.


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Richard Crowley
Re: Lighting kit for Chroma keying
on Feb 4, 2010 at 7:22:09 am

Indeed, Walter Graff's website is: http://www.bluesky-web.com/
It is a gold-mine of lighting ideas. I have liked his "Building A Compact Lighting Kit" for many years. Recommended.


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Roger Hobbs
Re: Lighting kit for Chroma keying
on Oct 15, 2010 at 9:22:54 pm

Hi everyone,

I'm in a similar situation, and I'm really curious about what kind of shop lights I should get to pull this off. I'm getting an Arri kit with 1x1000, 2x650, 1x300 (I'll use lights from this kit to light the subject). Down the road, I plan to get a Kino kit for the chroma wall, but that's not possible right now with the budget. So then I read this thread and the shop lights idea piqued my interest. I have zero experience with these consumer flos, so I have no idea how many to purchase or exactly what kind of 4' shop lights I should buy. Here is a link to a comparison of some I found on Home Depot's website, but if there are other lights that would work better for something like this on the cheap, please let me know:

http://www.homedepot.com/webapp/wcs/stores/servlet/THDProductCompare?errorU...

The chroma wall is 13'3" across, 9' ceiling to floor. I was thinking of putting the chroma lights on either side since there's not an ideal height ceiling to floor. The room has about 27'7" length from the chroma wall to the rear wall, so I'll be able to get the subject a decent distance from the wall and away from the flo lights. There will usually be only one person who will be the subject for these shoots. There's not a lot of room on the sides, so I'm painting the side walls black to avoid lighting headaches (I know that alone is something people like to debate and a topic for another thread).

So my question for the people in here who have more experience than me with this sort of setup is: how many shop lights should I purchase? Or perhaps, how many lights should I start with -- I'm okay with buying more if the first set is not enough. I was thinking 2 (one for either side and adjust for even lighting), but please let me know if you have a better suggestion.

Also, specifically what kind of shop lights do you recommend, and what kind of bulbs? I see various kinds of fixtures, so I don't know what kind works best in this situation.

Again, this is a temporary cheap solution until I can get the pro lights for the chroma wall. Also note -- I will be using these lights for the wall only, not for the subject.

Many thanks in advance for your help!


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