cameramanfilm
Member
So I have a shoot this week (greenscreen) and the deal is money like none,any way has any one shot green screen with any light other then kino's or big guns (10K) the green screen will be 12X20
Help
:-/
Help
:-/
green screen
- Thread starter cameramanfilm
- Start date
OPHERBA
Well-known member
Re: green screen
I don't have an experience with this product:
http://www.seriousmagic.com/ukoverview.cfm
But maybe it is worth looking at.
Johnnie
I don't have an experience with this product:
http://www.seriousmagic.com/ukoverview.cfm
But maybe it is worth looking at.
Johnnie
Barry_Green
Moderator
Re: green screen
Shooting green screen is fairly easy, just light it evenly with broad soft sources and make sure that it's lit consistently (the DVX's "marker" feature is a way to check for overall brightness). Don't light it brightly -- the more light you throw at it, the more it will bounce back on your actors and leave an ugly spill that's hard to key out.
Keep your actors as far away from the screen as possible. 10' at a minimum, 20' is better. Light them fairly normally, trying to control light spill on the green screen.
When it comes time to key them, I found that Vegas has a superb keyer. If you add the "chroma blur" effect before the chroma-key effect, you can get very high-quality keys.
Shooting green screen is fairly easy, just light it evenly with broad soft sources and make sure that it's lit consistently (the DVX's "marker" feature is a way to check for overall brightness). Don't light it brightly -- the more light you throw at it, the more it will bounce back on your actors and leave an ugly spill that's hard to key out.
Keep your actors as far away from the screen as possible. 10' at a minimum, 20' is better. Light them fairly normally, trying to control light spill on the green screen.
When it comes time to key them, I found that Vegas has a superb keyer. If you add the "chroma blur" effect before the chroma-key effect, you can get very high-quality keys.
Re: green screen
Throw the lights off to the side and light from there. The light will bounce at more of an angle and you actor standing in the middle of the bounce will not have as much spill as if you'd had the lights directly behind the camera shinning right at the actor and wall.
Throw the lights off to the side and light from there. The light will bounce at more of an angle and you actor standing in the middle of the bounce will not have as much spill as if you'd had the lights directly behind the camera shinning right at the actor and wall.
cameramanfilm
Member
Re: green screen
thanks guys I work power rangers the last year they were in the states but we shoot on a big stage with big heads.
so working with my dvx100 is new to me,one more thing can i shoot 24p?
thanks guys I work power rangers the last year they were in the states but we shoot on a big stage with big heads.
so working with my dvx100 is new to me,one more thing can i shoot 24p?
hemophilia
Well-known member
Re: green screen
24p should be the exact same thing for green screen keying purposes. The slower shutter speed will motion blur a little more and perhaps give you softer edges in motion... but it's not really an issue usually. Progressive is the way to go.
Let us know how it turns out. Post some pics when you get it up.
24p should be the exact same thing for green screen keying purposes. The slower shutter speed will motion blur a little more and perhaps give you softer edges in motion... but it's not really an issue usually. Progressive is the way to go.
Let us know how it turns out. Post some pics when you get it up.
Scottdvx100
Veteran
Re: green screen
3 stops is a lot, especially for video, which would get you close to black from mid gray.
Keep your subject away from the screen and make sure to get a reasonable exposure on the greenscreen. Better yet shoot a test ahead of the actual shoot so you can test extraction (or bring laptop to the set)
3 stops is a lot, especially for video, which would get you close to black from mid gray.
Keep your subject away from the screen and make sure to get a reasonable exposure on the greenscreen. Better yet shoot a test ahead of the actual shoot so you can test extraction (or bring laptop to the set)
Barry_Green
Moderator
Re: green screen
A common misconception about shooting greenscreen is that people think the screen should be "brightly" lit. Nonononono... you want it evenly lit, but bright = bad, because if you light it brightly, it basically becomes this large glowing green softlight source that will spill all over your subjects! You want it to be probably at least a good 2 stops under your key exposure.
A common misconception about shooting greenscreen is that people think the screen should be "brightly" lit. Nonononono... you want it evenly lit, but bright = bad, because if you light it brightly, it basically becomes this large glowing green softlight source that will spill all over your subjects! You want it to be probably at least a good 2 stops under your key exposure.
Re: green screen
Too dark on the green will get noisy and make keying more difficult. The 'key' to greenscreen work is soft edging of your subject. Not too much to look artificial but just enough to 'wash' the edges and wipe out any green fringing on your subject. Large soft sources work best, like a 4 X 4 or 4 X 8 foam core. Get them as deep as possible behind the subject and don't overlight them. You can make one side a little brighter than the other if it looks good. All the spill from these lights usually won't hurt the green. i light the green last and add only enough to even it out. 1 stop below skin tone for the green is where I get my best results. Do this all the time and get high praise from the editors.
Too dark on the green will get noisy and make keying more difficult. The 'key' to greenscreen work is soft edging of your subject. Not too much to look artificial but just enough to 'wash' the edges and wipe out any green fringing on your subject. Large soft sources work best, like a 4 X 4 or 4 X 8 foam core. Get them as deep as possible behind the subject and don't overlight them. You can make one side a little brighter than the other if it looks good. All the spill from these lights usually won't hurt the green. i light the green last and add only enough to even it out. 1 stop below skin tone for the green is where I get my best results. Do this all the time and get high praise from the editors.