Masking on lenses: BE CAREFUL.
Some of the high output projectors and lenses are chucking a LOT of energy out the front of those projectors. Be careful using Gaff Tape and or cardboard, you may have an ignition source if you aren't careful. I'm using a 5K
Lumen projector and stuff in front of the
lens gets hot. I'm using a Flapper for projector dowsing so I don't have to worry about front of projector heat problems.
Since the lenses themselves are sometimes as expensive as the projectors, you also don't want to bake adhesive onto the lens.
Also check out
Qlab as a media server. The base package is FREE but you have to pay for plug in functionality for some high end effects. Nice article about it in this months Live Design.
Chris Chapman
TD, Greenville Performing Arts Center