Seledor Barndoors?

My understanding is that City Theatrical is making barndoors and other accessories for the selador series.  I would check with them to find out what they are making and when it will be available.  I heard they were showing some at LDI last month.

Indeed City Theatrical do now produce Barndoors for the VIVID- R unit.

Indeed City Theatrical do now produce Barndoors for the VIVID- R unit.

I'm curious how well these will work, especially if the unit isn't lensed. It looks like the blue, indigo, and cyan emitters are all near the top/bottom of the fixture. My unprofessional guess is that moving a barndoor in on the top or bottom would remove some of the cool colors from the beam. Especially if there isn't any lensing to mix the colors, and the door is close to the emitters.

I could be completely wrong. Maybe someone else from ETC can chime in on this. I'm just a console engineer who loves using Seladors in my amateur designs.  I suppose the barndoors are worth trying.

Tom spoke on this subject before: http://community.etcconnect.com/blogs/lightminds/archive/2010/03/01/fire-amp-ice.aspx

In my experience with LED fixtures, Kevin is absolutely correct.  The City Theatrical barndoors would be useful for glare control, but not for beam control.  They'd work about as well as barndoors on a PAR WFL, which do far more to reduce the amount of light than they do to control it, except that, as Kevin notes, here you would also be changing the color mix.   Optically, you have to think of each of the LED emitters as a tiny light fixture; to get beam control, you'd need to put a tiny little barndoor on each of them.

"Optically, you have to think of each of the LED emitters as a tiny light fixture; to get beam control, you'd need to put a tiny little barndoor on each of them."

 Actually, I don't think it would be as hard to do this as it sounds. I'm not sure how well it would turn out, but all you would have to do is get a sheet of aluminum and cut it up in to strips, then roll them up. So you would have several little tubes and you probably wouldn't even need to use adhesive if they could be held down by the lower plastic plate/lens(assuming it won't melt anything). It would take a while to make and would be a pain to do your whole rig, but it would be interesting to see if it would work!