Quote:
Originally Posted by Steve Bruzonsky /forum/post/12551088
Sim2 in their spec sheet states that the throw ratio for this projector, T2 lens, is 1.7 to 2.6 (times 16:9 screen width).
Mark Haflich (Soundworks in Maryland) has been helping me with some technical details in planning my video renovation for the new Sim2 C3X 1080 projector. [I've known Mark since 2000, when at the very first AVS CES Party at the Las Vegas Hilton buffet, informal, that I organized, giving out 12 grand in door prizes, with Mark being the grand prize winner, a $5K Stewart screen. HA!).
Mark has been doing some checking with Sim2 to ensure that his customers
get correct information, because it ain't no fun when you have picture problems and find that the given throw ratio doesn't seem to work right.
Mark talked to a technician at Sim2 very recently and got him to measure throw ratio with both the T1 and T2 lens. I'm concerned about the T2 lens. Turns out the throw ratio ain't 1.7 to 2.6, but 1.75 to 2.4 and also you are not to use the first six inches at each end of the throw ratio.
I've been advised that I am best to mount as close as possible to the end of the throw ratio - 110 (16:9 screen width) times 2.4 less 6 inches = 21.5 feet.
I am glad to get this cleared up for otherwise I would have gone a bit further back.