I've only read this in a few places but wanted to know from others - is it normal for HMI's to give off any color casts as they age, bulb or ballast?
I had one shoot using two ARRI brand name 575w PAR HMI's and one looked yellow/orange compared to the other one. No gels, just a wide angle lens for the light and some barn doors. I never noticed until post.
Recently another shoot, three 1200w HMI's varying brands, and I have an obvious magenta cast from one of them that is picked up by certain objects in the frame. Again didn't notice it until post.
Would LOVE to hear from other folks on this,.