Projector Room-Fit Guide · Ultra short throw 1080p laser
ViewSonic LS831 for a Golf Simulator: Throw Distance & Mounting Guide
ViewSonic · 1920x1080 · 4500 lumens · Laser · 50 ms lag · Updated June 2026
The ViewSonic LS831 has a 0.23–0.23 throw ratio, which means it needs 3′ 3″ of distance to fill a standard 8-foot-tall 16:9 impact screen. As an ultra-short-throw unit it mounts almost against the screen wall — no shadows, no beam in your eyes, and zero conflict with your swing.
Throw distance by screen size
Lens-to-screen distance for common impact-screen heights (16:9 aspect).
| Screen height (16:9) | Image width | Lens-to-screen distance |
|---|---|---|
| 7 ft | 12.4 ft | 2′ 10″ |
| 7.5 ft | 13.3 ft | 3′ 1″ |
| 8 ft | 14.2 ft | 3′ 3″ |
| 8.5 ft | 15.1 ft | 3′ 6″ |
| 9 ft | 16.0 ft | 3′ 8″ |
Table / floor placement
As an ultra-short-throw projector, the ViewSonic LS831 isn't ceiling-mounted — it sits on a low shelf, credenza, or the floor just 3′ 3″ from the screen, throwing the image up and onto the impact surface. Its 130% vertical offset means the image lands well above the lens, so place the unit low and centered, then fine-tune height and keystone-free alignment with the adjustable feet. Keep it far enough back from the hitting area that a mishit can't reach it, or recess it into a protected cubby below the screen.
Room depth check
Budget about 9 ft of total room depth for the ViewSonic LS831: maximum throw of 3′ 3″ to an 8 ft screen, plus 10–12 ft of ball-to-screen distance and swing room (throw and hitting space overlap with a short throw, which is why it fits tighter rooms). Behind-ball radar launch monitors add a further 7–9 ft behind the ball.
Frequently asked questions
How far should the ViewSonic LS831 be from a golf simulator screen?
For an 8 ft tall 16:9 impact screen (14.2 ft wide), the ViewSonic LS831's 0.23–0.23 throw ratio puts the lens 3′ 3″ to 3′ 3″ from the screen. Measure from the front of the lens, not the back of the chassis.
Is the ViewSonic LS831 good for a golf simulator?
ViewSonic LS831 is a ultra short throw 1080p laser model with 4500 lumens and 50 ms input lag. Its ultra-short throw keeps it completely out of the swing path and eliminates player shadows.
What room depth do I need for the ViewSonic LS831?
Plan on roughly 9 ft minimum: 3′ 3″ of throw to an 8 ft screen plus ball-flight and stance space. Radar launch monitors push the comfortable minimum higher — verify your exact layout in the free calculator.
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