Projection Screens for 3D Slide Projection

Here are some sources of projection screens suitable for 3D projection using polarized light. Regular white screens will not work as they will de-polarize the light, destroying the left/right separation.

1. Da-Lite Picture King. Available through B&H. Made up to 70" x 70" currently. Silver lenticular surface. Grainy image if sitting too close (like in your living room). Fine for large rooms/crowds. Excellent horizontal light distribution.
   
2. 1950's vintage flat silver. Check out your antique malls, flea markets and used camera shops. As far as I know, not currently produced in "amateur" folding version. Great for small rooms and controlled seating situations. Limited horizontal light distribution. Excellent detail.
   
3. Stewart Filmscreen flat silver. Custom-made. Canvas snaps on to aluminum stand, is stretched flat. 6' x 8' is about $1800. Fair horizontal light distribution. Excellent detail.