Originally Posted by rwestley
I wonder how the B+W filter used by many with the 700 would work on the 900. Hope someone does some testing soon.
Do you, or anybody else, know what filter that was? Was it just a red filter (like a CC30R or CC40R), or did it have some skew toward orange or salmon? The skew that way would reduce blue a little more than green, which looks like the most ideal way to go to me at this point.
Originally Posted by Scott B
Did you calculate the lumens in each mode?
I didn't, but I have some numbers written down at home. The numbers with a filter would be lower, but in Normal mode without a filter and the lamp on high I recall averaging around 190 lux at screen level with a 90" wide image. That is 190 lumens per square meter. Going to Google and asking, "What is 90 inches in meters?" gives a response of 2.286 meters. Multiplying that by 9/16 gives 1.286 meters for the image height. Then 2.286*1.286=2.94 square meters. Multiplying that by 190 gives 560 lumens in that mode. That doesn't sound like a lot if a color filter and putting the lamp on low are going to end up at 200 lumens or so. I haven't tried low lamp mode though.
Originally Posted by romanesq
I had used the filter with the AE700. I think changing the screen is a much better idea having tried both. I think the Optoma Graywolf is a great match in that regard since so many of these are shelf/table mounted.
I can try the Graywolf I have, but it seems to have a blue push of its own, which is the opposite direction as we're trying to go with the color balance here though. But, your post does bring up a good point that might be one reason you prefer the screen change. One thing we are trying to do is improve the on/off CR. But, that will come with a loss of lumens. If you have lights on then this may hurt the on/off CR off the screen. And in a white room it may be more adventageous to use a gray screen to help retain ANSI CR than to end up making the projector dimmer and not being able to use the gray screen because the images would be too dim then. This is part of the tradeoff between ANSI CR and on/off CR in the images. Does your room have light colored walls?
If it weren't for the pattern I see on the Graywolf I would probably use it and a color filter on the AE900 in my dark room.