|
|
Posted by nobody special on 01/18/06 21:30
Before you paint with the expensive paint, you need to prime the
surface. I recommend the flat white latex, water-based primer, brand
name: "Kilz". Kilz comes in a water-based latex and an oil base, do NOT
use the oil base!!! But if you lay this primer down first, your blue or
green rosco paint will work WAY better. It may in fact make ALL the
difference. It's also really cheap, yet reduced the amount of the
expensive blue or green you will need for x amount of surface area.
If you are painting canvas.... like a canvas theatrical flat from your
drama department.... you would need to seal the weave of the canvas
even before you prime it. Wetting even primed canvas can lead to
wrinkles, which are bad for chromakeying.
If I were you, instead of the canvas, I would go to the local home
center and buy an end roll or short roll of their cheapest vinyl
kitchen/bathroom sheet flooring. The pattern or color doesn't matter.
The thing is, the "felt"-like back side, the part that usually gets
glued to the floor- takes paint super-well. So grab say an eight by
eleven or whatever roll of this sheet vinyl flooring, lay it out, prime
it with the KILZ, then use your expensive chromakey paint on it. It
will absorb much less paint than the canvas, so you can keep the
leftover re-sealed can for touchups later, or to use on chromakey props
like boxes, columns, support rods, stools, and etc. (stuff you don't
yet know you will need, but trust me, you will thank me later). Take
two 2x4 wood slats and some contact cement, and make a sandwich across
the short end of the vinyl. Drill holes thru it at several points along
the length and put screws in as well. Now that whole thing can be hung
from two sturdy light stands or with chains and eyebolts from an
overhead grid, or nail/screw the thing into the wall studs. The excess
length sweeps onto the floor, creating a perfect limbo cove for your
keying. The vinyl is flooring after all, so it can handle people
standing on it and the like, which canvas or photog's paper can't. If
they should scuff or scratch it anywhere, well, you have leftover
touch-up for that now. The vinyl "cove" can be taken down and rolled up
for transport or storage, just don't try to roll it really tightly, or
paint may flake off. If you primed it well, this is unlikely to happen.
This setup will work better for you than a canvas flat or a solid wall
of the room. It makes lighting a little easier because of the curving
bottom. The sheet vinyl should only set you back 25 bucks or so.
You'll save at least that much by needing less of the $50/gallon Rosco
paint.
Navigation:
[Reply to this message]
|