Originally Posted by RickAVManiac
Ok here my FL result. On a 120 inch 16x9, 0.9 gain screen. Grayscale at D65
Short throw :
Low lamp = 10 Fl
High lamp = 15 FL
Longest throw :
Low lamp = 7 FL
High Lamp = 11 FL
Right now there about 15 hours on the lamp.
Right - thank you SO MUCH for doing this. I know it is a real PITA to move the pj around to do this type of testing, especially once you have it set up where you want it.
Its pretty disappointing to hear that we are looking at basically a 30% drop in lumens from shortest to longest, as I will be mounting basically at the longest.
So if we take Kraine's 495 lumens at shortest throw... oh wait technically he wasn't at shortest throw but pretty close - ok let's give the pj the benefit the doubt and add 5% to that - so let's call it 520 lumens at shortest throw...
OK so we take 520 and drop it 30% we are at 364 lumens for longest throw (low lamp). On my 106" diag 1.3 gain Firehawk that will yield about 14.3ftL. Ironically that is right about where I am now with my RS20 (just measured yesterday) at 117 hours on the bulb. The brightness is acceptable with the RS20, so I know it will be acceptable with the Sony. That said, it would have been nice to get a 10-20% boost in this area.
And supposedly the bulb is reasonably priced. I usually don't put more than 200-300 hours a year on a bulb, so if I need to replace a bulb at 300 hours once a year its worth it to have the pj.
So Rick - one thing I was thinking is that if the brightness does bother me I could just run in high lamp mode. Considering how quiet it is in that mode, that is an option with this pj unlike with most others. So then the real question becomes - how much is the black level affected by running in high lamp mode. Since the whites become that much brighter, sometimes it can trick your eye into thinking the blacks are just as dark because relative to the extra bright whites the blacks seem nice and black. Thoughts?