[quote]Originally posted by tvted
[b]"It is likely that flickering would be more apparent in dark scenes where your eyes would be more sensitive to small changes in light output."
-Yes, I pondered that myself. Sometimes, the only difference between a dark scene that flickers and one that doesn't is the presence of a few sharp highlights. Dark scenes with highlights usually seem to have no flicker and better blacks, perhaps due solely to the narrowing of my own pupils in the presence of the highlights. I can pretty much count on a generally dark shot, without a few bright points, to cause (or reveal) the flicker, lately. These are always the dark shots that look washed out to begin with.
"However, dark scenes would also be where the Iris would be more active.
Try watching scenes that you believe will make the flickering visible and turn off the sound - see if you can hear the Iris moving or the bulb arcing."
-Excellent point, and I should have thought of doing that. I haven't had a chance yet, but I'll try to make time tonight.
"Do you run mainly in LOW bulb?"
-I went back and forth, depending on my mood and the particular movie, until "The Dimming" arrived. I was always surprised by the subtlety of the difference. Desperate now for every last lumen, I've welded the switch at "high". When designing my theater around the 700, I had greedily maxed-out my size/brightness ratio, and hadn't left much latitude for future dimming.
"Do you use your PJ more than 5 hrs daily?"
-Never. Max 2 1/2 to 3, usually 2 and only every few days. This is why, even as a vet of the main thread, I have only racked up 160-odd hours.
One major effect of the dimming, which I'll assume for the moment is normal post-100 hr. dimming and not a defect, has been a quite distinct reduction of the apparent contrast ratio. While I'd bet that the general assumption would be that a less bright lamp would yeild darker blacks (and would indeed measure as such), the SUBJECTIVE effect has been just the opposite for me. Again, I chalk this up to my pupils' wider reaction to less bright images. One argument against this would be that the blacks should darken to the same degree as the whites, but what I'm seeing definitely doesn't bear that out. Under lower lumens, do the LCD panels allow a larger RELATIVE percentage of light to pass through the fully blackened portions compared to the fully white ones, or does my own pupil create that disparity through a similar non-uniform response? Hmmm. In any case, by the time it reaches my (admittedly preoccupied and atrophied) brain, there's no question about the new reduction of apparent CR. Of course, if my 700 is simply out of whack, I'm pondering uselessly.
Thanks for your input, tvted.