Originally Posted by
djeric68
I know what you mean about the pluto w/ the -6 pango lens. i bought one and got the same results. I bought the lens for a bam type safety net if things ever got out of control, and never intended to A.S. with it, but i did try it at home "just to see" how it would look and agree it is not great.
The epson seems to be the way to go. I dont want to deal with the variance hassels needed to do A.S. and possible liability issues.
Cool, Eric! We'll all appreciate an update after you get some time with the Epson. I suspect you'll be quite pleased with it.
Regarding the higher diopter SS lenses, they look decent in my opinion in single-mode rigs (or 473nm or 532nm lasers) or other such situations where divergences are similar and alignment is perfect. (I find I have to re-align after adding a SS lenses.) Common multi-mode laser beams however looks like total cr@p after even low diopter SS lens though, especially when projecting mixed colors where the difference in divergence makes a huge difference in the size of the beam. In any case, the non-coherent light comping out of a video projector should bypass this problem leaving white (or any color) "beams" white without significant color halos.
Originally Posted by
White-Light
It doesn't appear from the posts that people are aware of it, but the Epson has been upgraded - there's a newer version out called the 5030UB in the US or the EH-TW9200 in Europe.
The contrast ratio is doubled on the newer model to 600K:1, luminosity still 2,400 lumens and price very similar.
I'm glad you mentioned this, White-Light. I saw the contrast ratio listed as 600K:1 on one website, but assumed it was a misstated as the spec manual from Epson which still said 320K:1. I guess it wasn't updated on the Epson site. The original difference between the UBe and the UB as I recall was that the UBe included a wireless router. The UB was slightly cheaper as a result. All of this said, 600K is definitely preferable to 320K, although both are still very high for 3 LCD projectors. An automated shutter on the video projector can get you to an infinite contrast ratio when you aren't actively projecting of course.
-David
"Help, help, I'm being repressed!"