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the
alpha (channel) project
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System Overview
Until
recently, lighting a standard green or blue screen has been cumbersome, attempting to achieve
an even color tone, and the results are not always
efficient for post-production
removal of the background.
However, if you are not yet familiar with
it, a somewhat newer approach to chromakey
production has changed that immensely:
The system utilizes a ring of colored
LED lights around the camera lens that
reflect off of a gray, reflective
backdrop. The result is a beautifully
smooth wash of color (blue or green, depending on the color of the LED's being
used) that makes pulling a great key close
to effortless... it is an amazing thing!
Just a few of the main advantages over
a traditional blue/green chroma key screen
setup are:
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A
perfectly smooth, even wash of
color, with adjustable luminance. |
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No
separate lighting needed for the
screen. Thus, no excess heat near
the talent, and considerably less
electricity usage / amperage draw. |
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Easy
portability, less gear to haul
around, lightning quick setup. |
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Allows
certain applications not possible
with a traditional chroma screen. |
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Very
good tolerance for wind / movement,
shadows and wrinkles. |
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This
type of system is in use throughout the
world in network and broadcast studios,
as well as commercial video production
facilities. On average, those systems
cost about $1,500 to $2,500 for a standard
package (which I have owned and used with
joy), and several thousand dollars on
up for a large, full-body system.
Since
my video production company has an upcoming
project this summer which mandates having
much more than my existing 8x8 reflective
material on hand, and it was only available
in many hundreds of meters, I decided
to create a limited number of these systems
for sale to, hopefully, help offset the
cost, and maybe provide an avenue for
this type of system to those who might
not otherwise be able to afford it. |
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