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Wide-converter lens design for a pico projector. | Semantic Scholar
Navitar SSW08 Projector Wide Angle Lens SSW08 B&H Photo Video
Projection Lenses for the Entertainment Industry | Jenoptik
Projector Distance: Wide vs. Tele - Pointer Clicker
Wide-angle projection devices from Pangolin Laser Systems
Navitar SSC08 Mini ScreenStar 0.8X Wide-Angle Conversion Lens for Multimedia Projectors with a panel size of 0.7" or smaller, Produces 25% larger images then the projectors standard lens at the same distance,