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Topic: projector stacking with slightly different lenses
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Joined: Oct 8, 2020
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I have two Sony projectors. Both has wide angle lenses but one of them is slightly wider.

Can I stack 2 projectors with each other if lenses are slightly different?

Lens 1: Short focus zoom lens with a throw ratio of 0.65:1*
Lens 2: Short focus zoom lens with a throw ratio of 0.85-1.0:1*

What do you think?
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Joined: Mar 28, 2005
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There will slightly different barrel distortion with two different lenses which will impact the ability for the two images to align on top of each other perfectly. You also want to be sure that both lenses offer lens shift and what the lens shift range is. Shorter throw lenses don't always have any offset and are sometimes designed to be placed dead center of the screen. This would be a problem with two projection systems.

I would go out of my way to get the same lenses and ensure that the lens supports lens shift with the projector in use.
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 Oct 15, 2020 8:04 AM):
There will slightly different barrel distortion with two different lenses which will impact the ability for the two images to align on top of each other perfectly. You also want to be sure that both lenses offer lens shift and what the lens shift range is. Shorter throw lenses don't always have any offset and are sometimes designed to be placed dead center of the screen. This would be a problem with two projection systems.

I would go out of my way to get the same lenses and ensure that the lens supports lens shift with the projector in use.

Thanks so much!!! I will do that!