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Topic: Short-throw projector to work in portrait mode
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Joined: May 6, 2014
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Dear all,

We are looking in to buying a projector to use in or exhibition booth at fairs and conferences.

We are planning to project media on to a roll-up panel that is 90cm (~35") wide and 220cm (~87") high. To fit the dimensions, I guess the best way is to place the projector edgeways (rotate 90degrees). But; as I've understood it, most projectors are not suitable to work in that angle, am I correct? Could this be compensated for by adding external cooling, or is the problem due to something else than heat?

Also, we want the projector to shoot rather symmetrical from the lens, i.e. we want to place the projector in front of the middle of the screen.

Any ideas and thoughts?

BR
Emil
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Joined: Mar 28, 2005
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Call it a 87" wide image, and you will have to consider how far away the projector will be and what viewing conditions will be for the image. Indoors in controlled light? Rear projection? Short throw? Variable?

I think the last of your concerns should be the two things you brought up. Most projectors with lens shift can be on center to a screen just fine. Likewise, there are plenty of projectors which can be placed on their side for portrait presentation.

Unless your situation is really controlled, best results would come using rear projection and covering the pathway between the projector and screen would be best.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.
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Quote (AV_Integrated on May 6, 2014 6:18 AM):
Call it a 87" wide image, and you will have to consider how far away the projector will be and what viewing conditions will be for the image. Indoors in controlled light? Rear projection? Short throw? Variable?

I think the last of your concerns should be the two things you brought up. Most projectors with lens shift can be on center to a screen just fine. Likewise, there are plenty of projectors which can be placed on their side for portrait presentation.

Unless your situation is really controlled, best results would come using rear projection and covering the pathway between the projector and screen would be best.

Well, I've rather good idea of the needed spacing and how to produce the larger image, it is just to use a calculator when having a given projector. The situation will be indoors, a short throw will be needed due to limited space. Rear-projection will not be used, since the roll-up panels most oftenly will have to be positioned along a wall.

I've had a hard time finding projectiors that can be placed on their side, but you say that there are plenty? Can you please advice where to find, and what to look for?

As I've understood it, the UHP-lamp in many cases are positioned in a way that makes placing the projector on the side impossible. But please, enlighten me.