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Author Topic: Extreme short throw projector
Geoffrey Hudson
Film Handler

Posts: 12
From: grand rapids, mi
Registered: Jan 2013


 - posted 02-09-2013 10:27 AM      Profile for Geoffrey Hudson   Author's Homepage   Email Geoffrey Hudson   Send New Private Message       Edit/Delete Post 
Hmmm... I'll check into the Barco. It'd be interesting if they did have something like that because it was a Barco rep who'd actually suggested the NEC short-throw that I was considering...

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Carsten Kurz
Film God

Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009


 - posted 02-09-2013 10:29 AM      Profile for Carsten Kurz   Email Carsten Kurz   Send New Private Message       Edit/Delete Post 
As this is a digital cinema forum, Jay probably thought about the new Barco DP2k-10Sx.

That, however, is a DCI machine. It has no specific wide-angle lenses, nor does it fit your budget for this stage projector application. It is a similiar machine to the Solaria One.

- Carsten

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Cameron Glendinning
Jedi Master Film Handler

Posts: 845
From: West Ryde, Sydney, NSW Australia
Registered: Dec 2005


 - posted 02-09-2013 07:03 PM      Profile for Cameron Glendinning   Email Cameron Glendinning   Send New Private Message       Edit/Delete Post 
To use a 0.3 and a typical computer or tv image you would need a 18 ft tall screen. These projectors have no zoom. 0.5 would give you an image that does not spill onto the roof and the stage floor. Unless you plan to run dvd's of cinemascope films ONLY!

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Geoffrey Hudson
Film Handler

Posts: 12
From: grand rapids, mi
Registered: Jan 2013


 - posted 02-09-2013 10:07 PM      Profile for Geoffrey Hudson   Author's Homepage   Email Geoffrey Hudson   Send New Private Message       Edit/Delete Post 
Is it just that it's not possible to do what I am trying to do with any equipment that currently exists? Starting to sound that way. [Smile]

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Carsten Kurz
Film God

Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009


 - posted 02-10-2013 09:48 AM      Profile for Carsten Kurz   Email Carsten Kurz   Send New Private Message       Edit/Delete Post 
You will definitly see a picture, but probably too dim in typical situations. As I said, make a scale drawing, consider all options for mounting the projector.

If the pieces to be performed offer decent control of stage lighting, it may work.

I used to do video projection for theater pieces with 1000 lumen beamers, but at the time, it was so evident that the lights would have to come down during projection, that no one really questioned it, so the piece and lighting was tailored to the projection.

Sure you can have a try - I still would try to rent such a projector first to test it.

I have never seen an image projected with a 0.3 projection ratio. It doesn't have to be that bad, and it is not intended to show any cinematic brilliance, just to have some punch.

All these projectors seem to work with a mirror. Datasheets typically quote small projection sizes - like 100" max. Not necessarily a physical limit, but as I already wrote, these are typically whiteboard projectors, not intended for large screens, and they certainly have more constraints than general use projectors.

There is e.g. the Epson EB- 485W with a projection ratio of 0,27:1. It is LCD, though. I think for a stage situation, DLPs in that price range would deliver more punch than LCDs. Make sure you can return the unit if your test shows you can not focus the image within your chosen geometry. This is usually never a problem with standard projectors, but these special short throw units could have real limits in screen/focus distance and thus max. image size.


- Carsten

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Cameron Glendinning
Jedi Master Film Handler

Posts: 845
From: West Ryde, Sydney, NSW Australia
Registered: Dec 2005


 - posted 02-10-2013 11:05 PM      Profile for Cameron Glendinning   Email Cameron Glendinning   Send New Private Message       Edit/Delete Post 
I've seen 0.3 projectors, infact I was asked to review one some time ago. But in your case an 0.5 is what I would be using.
video review

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Jonathan Bodge
Film Handler

Posts: 83
From: East Dorset, VT
Registered: Nov 2006


 - posted 02-11-2013 08:05 PM      Profile for Jonathan Bodge   Email Jonathan Bodge   Send New Private Message       Edit/Delete Post 
If you have fly space project down on a mylar mirror.

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Jonathan Bodge
Film Handler

Posts: 83
From: East Dorset, VT
Registered: Nov 2006


 - posted 02-12-2013 11:40 AM      Profile for Jonathan Bodge   Email Jonathan Bodge   Send New Private Message       Edit/Delete Post 
Unfortunately the mylar mirror would be quite large for a 16/9 image at a 10 foot throw w/ a .67 lens, and quite expensive.

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