Long time lurker, first time poster. Many thanks to everyone for their blood sweat and tweaks over the years, as I initially started considering a digital FP when the AE-100 was the hottest thing around on these pages. I eventually pulled the trigger on the HS-51 a year and a half ago, and while my girlfriend begrudgingly tolerates it, it has since become a member of the family. (It's called 'The Beamanator')
While everyone else who watches it in action can only utter 'Holy Crap!' or something to that effect, there's still one small problem that occasionally irks me. Namely, when a small field of white (i.e. credits) appears over a field of black, the white turns a sickly green color when the auto iris engages. I've tried turning the iris off, but while that completely solves the problem it also kills the blacks.
I am running the 'light cannon' tweak first mentioned in the Ruby thread (and I can't go back), but the problem was still with me when the iris was at its default settings. In fact, it was much worse then. I'm assuming that my contrast levels for average viewing are suddenly 'too hot' once the iris engages, but if I lower them until the green disappears, normal material looks dead and washed out. With color material this usually isn't noticeable, but in the black and white opening of Casino Royale, the lamp post outside of the Prague office building burns green-white instead of white-white.
I'm projecting onto a 98" piece of Luoun painted egg-shell white, and sources include DVI-HDMI from my Comcast cable box, and an older region-hacked JVC progressive DVD player through component cables. I did recently try hooking up my friend's upscaling Oppo player, and that did seem to tame the greens slightly.
The only time I've ever seen it mentioned was in relation to someone changing their air filter. They said that the green disappeared after the fact, but no such luck in my case. I'm still running the original bulb that came with the unit, but the problem was with me from the beginning.
Has anyone else noticed this issue?