![]() ![]() ![]() The screen has very little elasticity, I do not have any experience with other screens so I do not know if it explains why it is so hard to tension properly or if it's the same with other screens. When unrolling the screen for the first time, I immediately noticed it to the very strong smell of paint solvent coming from the material. Indeed the projection surface is only a painted coating on a synthetic rubbery/latex material. I also had to be careful with the amount of tension I used to make sure I would not damage the fragile silver-screen surface. This was my first screen ever and I was surprised how hard it is to tension the screen properly, not enough or too much tension and the screen starts to fold near the attach points. It is also adjusted to be within +/-1mm of the actual screen size. It can also be unmounted for transport when I'll move to some other place next year (the frame won't fit through the staircase) It is not rigid as steel but I have used anough attach points to make sure it is strong enough while being still very light, which is what I need. It's simply made of squared-section aluminium tubes attached together simply with screws. Here we go, enjoy and do not hesitate to ask if you have any questions I've used the longest available exposure times (1/3 second) on a tripod to try and remove as much noise as possible but despite that, the pictures really don't do justice to the quality of the picture actually being displayed. ![]() I do not have a proper camera, I have to use my camcorder photo mode which is quite bad. I would also like to apologise for the the poor quality of the pictures. I still did it this way because I know I will move to some other place some time next year. (As you will see on the pictures, the screen blocks the opening of main window) I have had a lot of trouble finding enough space to assemble everything and I have to move furniture to be able to use the system, and then put the screen away once i'm finished with it so that I can resume normal use of the room. My apartment is too small for the screen. This is not a proper complete Home-cinema setup for a very simple reason : Initial budget for the system : 4000 € (not including the computer or software)ģ Displays connected and working simultaneously :ġx Zalman 22" interlaced 3D display (my standard monitor) : connected through Display Port and active DP->VGA adapterĢx Epson EH-TW3500 projectors : connected though DVI with DVI to Hdmi passive adapters.īefore posting the pictures I would like to remind you that this is my first ever projector setup and the frame is also my first DIY project. Price : 30€ for a box of 10 pairs of glasses (3€ per glasses) from Stereomax (French online 3D equipment shop) > 3D Glasses : Linear 45°/135° 3D glasses, identical design to the RealD 3D glasses you get from cinemas except they are with linear filters instead of circular and different brand. Price : 669 € for the set of two filters and projector mounts Peak polarisation extinction ratio 1000:1 (manufacturer specs) > Polarising filters : Silverfabric POLAR-L-50 with projector mounts (heat resistant polarising filters, linear polarisation 45°/135°, designed to be able to dissipate the heat of projectors, transmitted light intensity up to 5000 Ansi Lumen without damage to the filters and with anti-reflective coating to reduce the amount of light reflected back inside the projector) Price : ~100 € at local hardware store and two evenings of "hard" work Screen attaches on top of the frame with 3M-Dual Lock tape > Screen frame : Home made aluminium frame with squared-section aluminum tubes. Price 507 £ (~600 €) from Harkness Screens UK > Screen : Harkness Spectral 240 (a professional cinema-grade Silver-screen designed for polarised 3D projection, known to be among the best surfaces for polarised 3D) 235x135cm (230x130cm visible), peak gain 2.4, peak polarisation extinction ratio 130:1 (manufacturer specs), aprox 105/106" diagonal Price 2x 1400 = 2800 € from French online shop > Projectors : 2x Epson EH-TW3500 (European version of the Epson HomeCinema 8100) Recap on the setup : (all price info include tax & shipping) I also keep a copy of this thread in the 3D displays section at AVS forums at the following thread : My Passive polarised Dual-projector setup Note: I originally wrote this post at AVS forums on the Epson Home-cinema 8100 projector thread, since it was quite a long post I copied it here, so there is some "3D beginner" speech in the text I didn't remove.Įnjoy the article and do not hesitate to ask questions or comments. Hello everyone, I finally completed my Dual projector project, here is my report on how it's doing. ![]()
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