We're working on a project to create our own home cinema room. We would like to have a passive 3D solution over active 3D (due the the flickering effect and the cost of active 3D glasses). Based on our research, we have the following possibilities: 1. 1 passive 3D beamer (nowhere to be found atm.) 2. 1 regular beamer with an active 3D polarizing filter in front of the lens. Active 3D polarizing filters are extremely expensive for their size. According to the second link down below, it seems possible to construct (DIY) such a filter from inexpensive active 3D glasses. 3d Polarizer Switchr: http://www.mediasluis.nl/webshop/product/77/Le-Vision-Mini-3D-Polarizer Homemade 3d polarizer switcher: http://3d.simplecarnival.com/a-homemade-polarizer-switcher 3. 2 regular beamers with a passive polarizing filter in front of the lens. Adjusting and aligning two beamers seems to be difficult and problematic. 4. Or 1 active 3D beamer Our questions: a. Which method is realistically most feasible at this point in time? b. Do any of you have experience with any of these methods? c. Wich beamer is a good match for this project and our wishes? It would be great if the price would stay under a 1000 dollars, but if a more expensive beamer (at most 1500) would be exponentially better, then we would consider it. d. What kind of projector screen do we require (for passive 3D). The prices vary wildly for silverscreens. What are the differences? e. Can you watch 2D movies on a silverscreen? f. Is it wise to incorporate ambilight around the projector screen? Does it disrupt the image quality in any way? Any thoughts and input is greatly appreciated!