Short throw or regular lens projector?

[poverty]

Working on my first garage build. I'm trying to decide between the Optoma HZ39HDR vs GT1090HDR. They look almost identical in spec with the primary difference being the distance from the screen. The garage is 11'6" high, projecting onto a 11' wide (not diagonal screen) and the sim is the Uneekor EyeXO which needs to sit 3.5ft away from the hitting area. Looking at the GT1090HDR it would need to sit 5.5ft away from the screen and drop down so it's 6.1ft off the floor. I'm assuming everyone has their screen start pretty much just off the floor? or alternatively there's the HZ39HDR which would need to be about 12' away from the screen and the same 6.1ft off the floor ceiling mounted. My question is which setup would be more ideal? I don't want some errant lobs to hit the short throw but also concerned about shadows with the regular HZ39HDR. We're not crazy tall (6') in height so I'm leaning towards the HZ39HDR but I'm some validation will help with peace of mind.

[lawrencejp42]

Coincidentally, I am wrestling with a similar planning issue. I also have the EYE XO.
I have the projector, Optoma EH200ST and plan to use it with a 4:3 screen from Carls. I am trying to figure out how far from the screen it will need to be mounted. The Optoma install chart only shows 16:9 screens. I would rather this not be trial and error.

[3on3putt]

Poverty,


1.) How tall is your screen?

2.) What aspect ratio are you wanting to run?

3.) What distance are you hitting from?

4.) Where are you getting your numbers from for the HZ39HDR? Projector central is showing the HZ39HDR being 15 feet away for an image width of 132 inches (11 feet as you said) in 16:9 and 16 feet away for 132 inches in 4:3.

[3on3putt]

Coincidentally, I am wrestling with a similar planning issue. I also have the EYE XO.
I have the projector, Optoma EH200ST and plan to use it with a 4:3 screen from Carls. I am trying to figure out how far from the screen it will need to be mounted. The Optoma install chart only shows 16:9 screens. I would rather this not be trial and error.

How big is the screen? That will determine how far away it needs to be mounted.

[lawrencejp42]

4:3 Diagonal 172". According to projector central the Optoma EH200ST will need to be mounted 7' 7" from the screen. That seems a little too far away if I want to keep the projector in front of the EYE XO.

[3on3putt]

Yeah, like I said in my reply to poverty, I've never hit on a Uneekor so I'm not real sure how they interfere with the image from a projector. Hopefully a Uneekor owner will chime in for you.

[poverty]

Thanks 3on3


1) 16:9 was the ratio I'm aiming for
2) Screen is going to be roughly 11'x9' tall
3) 8ft from the screen
4) I was using Optoma's calculator: https://www.optoma.com/projectioncal...name=GT1090HDR

[3on3putt]

Thanks 3on3


1) 16:9 was the ratio I'm aiming for
2) Screen is going to be roughly 11'x9' tall
3) 8ft from the screen
4) I was using Optoma's calculator: https://www.optoma.com/projectioncal...name=GT1090HDR

So with a screen that is 11x9 with a 16:9 aspect ratio you're looking at an image that is 11 feet wide and just over 6 feet tall.

If you use 4:3, you can increase your image size to 11 feet wide by 8.25 feet high. May compromise a little resolution in exchange for the extra 2 feet of height.

Projector central shows the HZ39HDR being mounted at 15 feet and 2 inches away for an image size of 11x6 in 16:9. https://www.projectorcentral.com/Opt...ulator-pro.htm

It also shows a vertical offset of 7 inches, meaning the middle of the lens would have to be positioned 7 inches above the top of the image (top of the image, not top of the screen).

If you ran it at 16:9 and had the image positioned near the floor, that would leave the projector only around 7 feet off the floor and 7 feet behind you, which means your shadow will be all over the screen.

At 4:3 and with the image starting up near the top of the screen, the projector would be around 9.5 feet up. So although it would be higher, it would still be well behind you and would still cast shadow.

I would recommend the GT1090HDR or something with a similar throw ratio so you can get it out in front of you or more overhead. I do not own a Uneekor so I can't really speak on how they might interfere with a projector. But I think that HZHDR is just going to put your shadow all over the screen. If you're hitting from 8 feet, try to mount something at about 8 feet or closer. Anytime you get something so far behind you it's going to cause shadow problems.

[poverty]

Thanks, at 5.5' for the short throw is that a concern on errant lob shots if I'm hitting from 8'? TBH I think the EyeXO will be sitting 4.5' from the screen.

[3on3putt]

Thanks, at 5.5' for the short throw is that a concern on errant lob shots if I'm hitting from 8'? TBH I think the EyeXO will be sitting 4.5' from the screen.

I would say it's probably fine. I hit from 8 feet with a projector mounted at 6 feet and I can't imagine that I could hit my projector if I tried. I hit plenty of flop shots when I play on the sim and I've never hit it. I'll hit some flop shots tonight and see how high of a launch angle I can get and let you work out the math (because I know I can't lol). Plenty of people have projectors mounted closer than 6 feet and I don't think I've ever heard of anyone hitting one with a shot.

[poverty]

Sweet, I'd appreciate that since most of these items are not returnable! I love my 60 degree wedge, and hope I can practice with that.

[lawrencejp42]

Poverty, let me know how this goes. We have different Optoma projectors but according to the calculator both the EH200ST and GT1090HDR should be ceiling mounted 7' 7" from a 170" diagonal screen. If you are hitting from 8' you might find golf club - projector interference. This is what concerns me.

[therealone]

I have the EH200ST and used the calculations from projectorcentral.com, which says 7'7" should result in a 210" diagonal screen. I just mounted it yesterday and the image is much less than 210". The resolution on my PC and projector is 1920x1080. Is there something I'm missing in the PC or projector settings or is projectorcentral just wrong?

[3on3putt]

Poverty, let me know how this goes. We have different Optoma projectors but according to the calculator both the EH200ST and GT1090HDR should be ceiling mounted 7' 7" from a 170" diagonal screen. If you are hitting from 8' you might find golf club - projector interference. This is what concerns me.

Not an issue at all. Directly overhead or a little bit in front is the preferred place for the projector. If the projector is centered over the ball (or out on front a little in line with the ball) your club will be traveling well left of the projector after impact. If you are hitting from 8 feet, then this is right where you want the projector.

If you are extremely off-centered because of the width of your space, then the projector might be more over your body and might be in the way of your follow through. But if it's centered over the ball you're good to go.

[lawrencejp42]

Thanks 3on3. I hope you are right. Difficult for me to picture. Sim room is going in basement w/9'ceiling. I'm not in there yet so I have lots of questions to get answered.

[3on3putt]

I hit from 8 feet with a projector at 6 feet. The thought of hitting it with my club has never even entered my mind. If you mount too far behind you you'll run into shadow issues. Mount too close to the screen and that's when you could put it in harm's way of a ball (either directly from a flop shot or indirectly from a ball bouncing back off the screen). Keeping it fairly close to the hitting mat is the safest place. I know it sounds odd, but this is where most everyone mounts their projector.

[Wormburner]

I have an EYEXO and a Epson 5050BU mounted at 17 feet. The Uneekor System is not close to interfering with image and I mainly use 4:3 aspect. I had Optima412ST and did not like the placement.

[lawrencejp42]

Wormburner, I'm not concerned about the EYE XO interfering with the image because it will be mounted at ceiling height. On the other hand I'm beginning to understand the influence the ceiling height has on projector location. My ceiling height (to bottom of joists) is 9'. According to the Optoma calculator my projector will need to be mounted 77" from the screen and at ceiling height to max the image at 87" H x 121" W and leave 21" at the top with no image. My planned screen is 102" x 138". I am interested to know if a camera mount with tilt adjustment would allow me to correct the image to get full screen coverage. I don't have the smarts to figure this out and may just have to trial and error it to get the best image.

[RJBoogie]

Wormburner, I'm not concerned about the EYE XO interfering with the image because it will be mounted at ceiling height. On the other hand I'm beginning to understand the influence the ceiling height has on projector location. My ceiling height (to bottom of joists) is 9'. According to the Optoma calculator my projector will need to be mounted 77" from the screen and at ceiling height to max the image at 87" H x 121" W and leave 21" at the top with no image. My planned screen is 102" x 138". I am interested to know if a camera mount with tilt adjustment would allow me to correct the image to get full screen coverage. I don't have the smarts to figure this out and may just have to trial and error it to get the best image.

Were you able to figure out how to get a projected image of 102" high? I bought the Optoma 1090 and I'm also getting the 7'7" recommended distance from screen. I'd like to get a projected image of 103" x 183", but if not possible I will return the projector (unopened still in box) and seek a different alternative.

Thanks!