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Post by Jonathan Wolf on Jun 29, 2015 3:47:32 GMT
Let's talk about the projector itself.
I plan on doing some research into what we need, but if you have any insight you'd like to share, that could save time or help us narrow down where to look.
I know that factors we need to be sure of include:
1- brightness factor - how far the projector can be from the wall and the projection is still visible
2- size of projection (and/or focus range) - how close the projector can be to the wall and still project a large enough image
3- angle of projection - how close the projector can be to the wall and allow the display to be adjusted so that the view is proportionally rectangular
4- widescreen vs 4:3 - I'm guessing widescreen is more common right now
5- HD vs standard - A clearer picture makes it more visible at a distance, but an older used model at standard def might be worth the cost savings
6- inputs - need VGA or HDMI inputs to work with existing laptop
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Post by Admin on Jun 29, 2015 22:40:17 GMT
Our new space will require a significant upgrade in lumens [brightness], size, and throw distance if we want to do this the right way. I would like to see a single, large screen as I have stated elsewhere. Here is a good article that discusses the first piece of info we need- How large of a screen do we want? www.musicademy.com/2012/04/screen-size-church-projector/Once we know the screen size (and I think 4:3 is off the table unless someone has a great argument), we can extrapolate the throw distance. Because we are not limited in how far back we can install the projector, we should be able to find one that functions in that throw distance without extra lensing. We do not have a set place for our stage yet. It seems that there are leanings toward the west wall. It could stay on the North wall, but this seems to be the least likely, or the SE corner. With 3 possibilities in mind the ideal screen size range calcs are below [based on the referenced website]: Room Dimensions: 55'W, 70'L, 89' hypotenuse Ideal Screen Height Range West Wall: 1/6 of 48'[screen to last row]= 8' and 1/10 = 4.8' North Wall: 1/6 of 60'[screen to last row]= 10' and 1/10 of 60= 6' SE Corner: 1/6 of 70'[screen to last row]= 11.67' and 1/10= 7' Based on those numbers, it appears that a screen with an 8' height fits comfortably at any layout. With a 16:9 ration that would give us a screen of 15'W by 8'H. This represents an issue if we want to keep drums center stage, because the ceiling height is 14' and the drum shield height is 6', plus the stage is about 2' Of course, this is mostly for discussion and we will have much more certainty with absolute placement. Ideal stage height changes with viewing distance as well. Nathan |
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dave
New Member
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Post by dave on Jul 1, 2015 2:17:07 GMT
Is it worth looking at a rear projection system?
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Post by Jack on Jul 1, 2015 2:55:46 GMT
I think Jonathan has done some good homework as far as aspect ratio and image size goes.
A rear projector needs some distance behind so usually I've seen these set up in corners.
I would need to take a closer look at the room and stage layouts and the details of power and signal feeds to the hanging projector before I committed to anything.
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Post by Nathan Ovitt on Jul 1, 2015 7:43:16 GMT
Is it worth looking at a rear projection system? All depends on layout choice, price, etc. It's not off the table, but probably highly unlikely. |
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Post by Jonathan Wolf on Jul 6, 2015 19:29:56 GMT
Now that the stage has been decided to be along the west wall, rear projection is right out.
It also seems like everything is pointing towards having 1 screen, which would require the screen to be centered. This likely means the drums will need to be off-centered, so view of the projector is unobstructed.
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sean
New Member
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Post by sean on Jul 7, 2015 2:48:14 GMT
I would agree on the drums being off center. I feel like they should be as far to the south end of the stage to maximize the room on the stage and to make sure people are not worshipping the drum set.
Also, do we know if the ceiling tiles are asbestos? May be an issue if the projector is being attached to the ceiling.
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Post by Nathan Ovitt on Jul 7, 2015 21:07:52 GMT
Now that the stage has been decided to be along the west wall, rear projection is right out. It also seems like everything is pointing towards having 1 screen, which would require the screen to be centered. This likely means the drums will need to be off-centered, so view of the projector is unobstructed. Definitely rear projection is out. It would require us having a room behind the stage from which to project. It was unlikely to begin with. |
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Post by Jonathan Wolf on Jul 25, 2015 15:30:03 GMT
I found this handy chart for lumens vs. screen size. www.projectorpeople.com/resources/lumen-guide.aspIt looks like our baseline is 4500 lumens. My current assumption is that we're planning on having the projector(s) setting back at the sound booth for cost/efficiency, so we may want to go with higher lumens, like 6000+ if possible, to make sure the screen(s) are visible. |
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