Short throw projectors besides Optoma solutions?

Quote:
Originally Posted by baltar /forum/post/20822973


Hi,


I was also looking for a solution for a bigger screen with my Mitsubisch HC5000 on a 12 foot distance and i found this:

http://presentation.navitar.com/page...s/overview.cfm


I bought the Standard ScreenStar® SSW08 for 995$ and it increased my zoom with 25% and i am thrilled with the result. The quality is excellent.


Gr.


Marco

Holland

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Quote:
Originally Posted by baltar /forum/post/20823040


I have bought it with a table mount. With this i think almost any projector will work but you must mail to Navitar about compatibility.


When these lenses would cost 100$ you should indeed be concerned about the quality. Those HD-lenses (1600$ for the 25% zoom) are used in professional flight simulators where every pixel is crucial. Navitar says the standard lenses are for use in a home theatre setup.


I am totally happy with the quality. I use it only with Blu ray material and they look as sharp as without the lense. Navitar offers a 45-day trial period (if you live in the US):

http://presentation.navitar.com/page...evaluation.cfm


However, if you find a projector with a native short throw: that's off course always best. But with this lens you can pick almost any projector you like and still shorten the throw range.

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Quote:
Originally Posted by Webmonkey /forum/post/20825434


It is 92" diagonal. I used projectorcentral.com calculator. I saw the X3 needs about 274cm from screen to lens. Then comes room for ventilation and projector case...

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Quote:
Originally Posted by Ron Jones /forum/post/20825937


I have both an Epson 6500UB (which has the same case design and same lens range as the current models) and also a JVC RS40 (same as X3). While these have virtually identical front of lens to screen minimum throw distance requirements, the JVC case depth is a little larger and JVC suggests a few inches (or cm) of rear clearance for cooling. So I figured if your room is exactly 3 meters wall-to-wall the Epson had a better chance of working with a 92" screen but even then another 20cm to 50cm for throw distance would greatly increase its chances for filling out that 92" screen.

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Quote:
Originally Posted by Ron Jones /forum/post/20825937


I have both an Epson 6500UB (which has the same case design and same lens range as the current models) and also a JVC RS40 (same as X3). While these have virtually identical front of lens to screen minimum throw distance requirements, the JVC case depth is a little larger and JVC suggests a few inches (or cm) of rear clearance for cooling. So I figured if your room is exactly 3 meters wall-to-wall the Epson had a better chance of working with a 92" screen but even then another 20cm to 50cm for throw distance would greatly increase its chances for filling out that 92" screen.

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Quote:
Originally Posted by Ron Jones /forum/post/20827662


As per the table on page 14 of the Epson 8350 Owner's Manual the shortest throw for a 80" screen is 2.38m and for a 100" screen the shortest throw is 2.98m, this is the same as my 6500UB. For a 92" screen the min. throw would work out to be 2.74m by these Epson specs. However, this is from the front of the lens to the screen and if the room is exactly 3.00m then this would be about 20 to 30mm short of having enough throw distance given the size of the projector and the need for some ventilation room from the rear of the projector. However, the Epson specs. may not exactly represent the min. and max. throw distances and a given projector may support a slightly shorter throw than spec'ed. The Epson manual describes the values in the table as a 'rough guide' and says 'actual size may differ'. The Epson on-line calculator (for the 8350) shows you need a 9.0 ft. throw distance for a 92" screen. The OP said the room is 3m wall-to-wall, but I had asked if it is exactly 3m or perhaps a little more, since a few extra cm, or inches, could make the difference of these Epson models working nor not.





The Epson on-line calculator info shows the 8350 throw ratios as 1.34 to 2.87, thus these LCD projectors are supporting a shorter throw than the 1.4 you saw listed for the LCoS models (but I would be surpised if they are actually the same). A 92" diagonal 16 x 9 screen is 80" wide and the throw distance would 1.34 x 80" = 107.2" or 2.72m (or just a little less than using the figures in the table from the owner's manual). However with a 1.4 throw ratio the min. throw distance for a 92" diagonal screen would be: 1.4 x 80" = 112" or 2.84m.

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Quote:
Originally Posted by Ron Jones /forum/post/20827662


As per the table on page 14 of the Epson 8350 Owner's Manual the shortest throw for a 80" screen is 2.38m and for a 100" screen the shortest throw is 2.98m, this is the same as my 6500UB. For a 92" screen the min. throw would work out to be 2.74m by these Epson specs. However, this is from the front of the lens to the screen and if the room is exactly 3.00m then this would be about 20 to 30mm short of having enough throw distance given the size of the projector and the need for some ventilation room from the rear of the projector. However, the Epson specs. may not exactly represent the min. and max. throw distances and a given projector may support a slightly shorter throw than spec'ed. The Epson manual describes the values in the table as a 'rough guide' and says 'actual size may differ'. The Epson on-line calculator (for the 8350) shows you need a 9.0 ft. throw distance for a 92" screen. The OP said the room is 3m wall-to-wall, but I had asked if it is exactly 3m or perhaps a little more, since a few extra cm, or inches, could make the difference of these Epson models working nor not.





The Epson on-line calculator info shows the 8350 throw ratios as 1.34 to 2.87, thus these LCD projectors are supporting a shorter throw than the 1.4 you saw listed for the LCoS models (but I would be surpised if they are actually the same). A 92" diagonal 16 x 9 screen is 80" wide and the throw distance would 1.34 x 80" = 107.2" or 2.72m (or just a little less than using the figures in the table from the owner's manual). However with a 1.4 throw ratio the min. throw distance for a 92" diagonal screen would be: 1.4 x 80" = 112" or 2.84m.

Click to expand...