Looks like I picked the wrong Planar thread to post in, so here goes again
Hey guys, looking for a bit of a sanity check here (I should probably stop reading the forum and just enjoy my projector). I just replaced the lamp in my 8150, had 1400 or so on the old one and had bumped it into high lamp. Anyway, I "recently" picked up one of the less expensive light meters so I would know what I'm looking at. Anyway I did some measurments before and after and I'm curious if these sound "right" to you:
With my new lamp, I measured 175 Lux in High lamp, and 110 Lux in low. Now I've got an (approx) 110x46" screen with an anamorphic lens so by my math I came up with basically 560/360 Lumens. I'm also at the extreme long end of throw here. The 560 Lumens I think jives with what I've seen, but the 360 seems rather low, though I guess it's "only" 35% lower (sounded like more before I did the math) and I guess that's close to the 30% or so knock you get with eco mode usually. So question 1, do these numbers sound reasonable?
Question 2 is, or maybe just interesting observation, but when I measured the old lamp, I got 145/100 Lux (470/330 Lumens) which is less than a 20% drop in High lamp and only about 10% in Eco, which surprised me.
The other question is, how much brighter is the Planar at the close end of it's throw? I'm wondering if I should consider moving it more to the close end of the throw.