rosco iris

  1. Chuck Reece

    Rosco DMX Irises Jamming

    Hi All, Recently 5 of my 6 Rosco DMX Irises, being used in 750w Source 4 units in Mode 1, have been seizing up, jamming in place and making a lovely grinding noise. When I go turn the silver knob on the back of the irises, they work for the day, but tend to stay the problem over again after...