Short throw vs normal throw

[GeordieFordy]

Hi all

I am a complete novice to golf sims & projectors. I have recently purchased a property with an attached garage with a truss roof / ceiling. Once converted it will be 5.5m x 5m room with a 6m vaulted ceiling height in the center.

I am busy planning my sim build / cinema room and am at a cross roads in relation to projector types. I am 6’ 4” tall so I thought i’d need a short throw projector to avoid shadows on rhe screen, however, ive seen some peoples builds where they have projectors behind them, high enough so they dont get damaged by a golf club.

For those who have short throw / normal throw projectors, what height do you have your projector, what distance from the screen and what image size are you getting?

Thanks for any help.

Paul

[GungHoGolf]

Take a look at the side view diagrams we have at https://store.gunghogolf.com/BenQ-TH...NEW-p265749740 to see how to figure out whether or not you'll cast a shadow. You can go to https://draw.io to draw up a little side view yourself to check things out - or use a pencil with graph paper.

You can determine throw distance (lens to screen) for any projector on the market at https://www.projectorcentral.com/Ben...or-pro.htm#top. Use the available image height of your screen as the key factor - with a PC, you can adjust image width from a 16:9 ratio down to 1:1 (square) as long as you have the height correct.

As long as your projector is hung on the ball/target line, it can be as low as 8 feet or so and not be in harms way from a club, no matter what distance from the screen it is or where it is in relation to the ball, unless you have some sort of crazy helicopter follow-thru.

As a rule of thumb, if your projector has a throw longer than about 14 ft, or you're hitting from further back than about 10 ft from the screen, or the throw ratio of your projector is higher than 0.9, you're in the danger zone for shadows. With your tall ceiling, you could mount a projector higher than your screen top to help avoid shadows, as long as your screen enclosure doesn't have a straight top on it that would block the projector beam if you raised it.