Greenscreen advice...
Hi,
I was working on a current project where i wanted to shoot a bunch of face on interviews with a greenscreen and then morph the interviewees like the sequence at the end of the micheal jackson music video 'Black or White'. I dont currently have a greenscreen and was in the process of purchasing on and was wondering if anyone could give me any advice on what sort of material i should purchase, any recomended stores/ebay and what sort of light i might need? Also if anyone knows of any interesting tutorials online, please let me know? Any advice would be appreciated Regards Ismail |
i've been using the 5x7 fold up flexdrop 2 ( green/blue) by photoflex for past year ... works very good ...
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What about lighting?
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have never lit the flexdrop ..
on current project i'm using natural light .. so the green screen is not evenly lit = no problem on the uneven lighting .. keying software either ultra 2 , keylight (in AE) , or combustion 4 keyer .. basically i get a good key around persons head/shoulder and garbage matte the rest of the frame ... had some problems with a few persons hair - the messy hair look with lots of ends sticking up/down/out - problem has been when shooting 4:1:1 color space hand size camera = lot of noise in those ends of hairs .. do not have same with 2/3 CCD size camera's ... |
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take sony 2100 and sony 500 series 2/3 chip camera .. shoot green with both and you will find the 500 series is much easier to get a clean matte ..both record to 4:1:1 ... or for that matter take any hand size SD camera ( except dvx100) and put it up against any 2/3 " CCD camera (dvcam) and the larger ccd files is much easier to work with ... IMO the larger CCD just has cleaner electronic's while the smaller CCD have to add much more electronic edge enhancement/sharpening ...
the dvx100 is the exception .. add 4:2:2 color space and that makes keying even better/easier ... would be interesting to compare keying HVX 200 dvcpro 50 vs. the panasonic 900 dvcpro 50 |
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1. light the green screen as evenly as you can, but there is no need to go overboard, as today's chroma-keyers are pretty good at dealing with slight uneveness in the background,There are many more details, but those are the major ones to watch out for, here some tutorials on the subject for futher reading: Down and Dirty Green Screen by Walter Graff (excellent) http://www.film-and-video.com/broadc...eenscreen.htmlAnd there are quite a few green screen discussion to be found by doing searches here on DVi... |
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