Hi all,
OK, here's a challenge! I have this event planned out for october! I need to project a video on the facade of a building. The projection surface has to be about 10 meters-high x 30-40 meters-large.
The ideal outcome is if i can project this from one projector, but i probably can also manage to use two or more projectors, break-up my video in pieces and synchronise them.
My first questions is, if i can use a normal projector and use special lenses on it to size up the projection surface?
My second question is, how far do "normal" projectors carry the picture? What power do i need? I can place the projector 15 meters from the building or further.
If anyone has an general idea of what this involves, please let me know. I have no knowledge of projectors whatsoever so anything will help.
Best
Andrew
Full Version: Projecting On A Building
QUOTE (Andrew Burgess @ Jul 20 2006, 09:35 AM) 
Hi all,
OK, here's a challenge! I have this event planned out for october! I need to project a video on the facade of a building. The projection surface has to be about 10 meters-high x 30-40 meters-large.
The ideal outcome is if i can project this from one projector, but i probably can also manage to use two or more projectors, break-up my video in pieces and synchronise them.
My first questions is, if i can use a normal projector and use special lenses on it to size up the projection surface?
My second question is, how far do "normal" projectors carry the picture? What power do i need? I can place the projector 15 meters from the building or further.
If anyone has an general idea of what this involves, please let me know. I have no knowledge of projectors whatsoever so anything will help.
Best
Andrew
OK, here's a challenge! I have this event planned out for october! I need to project a video on the facade of a building. The projection surface has to be about 10 meters-high x 30-40 meters-large.
The ideal outcome is if i can project this from one projector, but i probably can also manage to use two or more projectors, break-up my video in pieces and synchronise them.
My first questions is, if i can use a normal projector and use special lenses on it to size up the projection surface?
My second question is, how far do "normal" projectors carry the picture? What power do i need? I can place the projector 15 meters from the building or further.
If anyone has an general idea of what this involves, please let me know. I have no knowledge of projectors whatsoever so anything will help.
Best
Andrew
did you look in to renting a commercial pj from a theater company ?
I havent looked into it yet. I'm in Iceland, very small place, I doubt they have what i need!
sincere answer; forget it.
long answer;
you are planing on 400meters square image area, this would need at a absolute dark night somewhere 40000 projected lumens. Well, the highest one I heard about was in the range of 800 lumens (but no vigneting info...) and the best (optimized setup and customized preset) was somewhere 250 lumens from supra. So either you go for a smaller image or you would need 160 Diy projectors one next to other.
good luck, and sorry If I demoralized you
long answer;
you are planing on 400meters square image area, this would need at a absolute dark night somewhere 40000 projected lumens. Well, the highest one I heard about was in the range of 800 lumens (but no vigneting info...) and the best (optimized setup and customized preset) was somewhere 250 lumens from supra. So either you go for a smaller image or you would need 160 Diy projectors one next to other.
good luck, and sorry If I demoralized you
QUOTE (Rox @ Jul 21 2006, 09:03 AM)
sincere answer; forget it.
long answer;
you are planing on 400meters square image area, this would need at a absolute dark night somewhere 40000 projected lumens. Well, the highest one I heard about was in the range of 800 lumens (but no vigneting info...) and the best (optimized setup and customized preset) was somewhere 250 lumens from supra. So either you go for a smaller image or you would need 160 Diy projectors one next to other.
good luck, and sorry If I demoralized you
long answer;
you are planing on 400meters square image area, this would need at a absolute dark night somewhere 40000 projected lumens. Well, the highest one I heard about was in the range of 800 lumens (but no vigneting info...) and the best (optimized setup and customized preset) was somewhere 250 lumens from supra. So either you go for a smaller image or you would need 160 Diy projectors one next to other.
good luck, and sorry If I demoralized you
Yep, Its a challenge and I dont want to demoralize you either...Thats a LOT of area to cover. You might want to scale down a bit...
BUT! We do have one person who did a projection of the side of a building that may be interesting to you. Simul8rs Plog has this series of photos. Maybe these will guide you in the right direction.
If you do manage it, please take some pictures!
SamuraiJack
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