Optima UHD30 has black border around the image. How do I expand the image completely? UHD50x didn't have this problem : r/projectors
Projector Screen Folding Metal Anti-Light Curtain with Black Border 84/100/120/130 Inches 16:9 Projector Outdoor Movie Projection 4K HD Quality (Size : 120in(266x148cm)) : Amazon.ca: Electronics
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Light Border Around Picture : r/projectors
Overhead projector - Wikipedia
Projection Screen 133 Inches | Anti Light Projection Screen - 16 9 Metal Light - Aliexpress
Yard Master Electric Series| DIY Backyard Movie Projector Screen
Is light bleeding around the screen normal? : r/projectors
Light Border around image. : r/hometheater
Rear Projection Screens| Back & Behind Short Throw Projector
Upgrade Your Home Office With A High Definition Metal Anti Light Curtain Folding Projector Screen No Punching Required - Office & School Supplies - Temu
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The Best Projector Screen (for most people) | Reviews by Wirecutter
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Hooked up my first projector! Optoma UHD50. In a dark room, there is light from the projector going a good 8-10 inches on either side of the screen even though the video