Possible to push a UST PJ somewhat past the max image size? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 3 Old 09-18-2019, 02:42 PM - Thread Starter
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Possible to push a UST PJ somewhat past the max image size?

Generally, it appears most UST projectors are rated for a max image size of 150 inches. For anyone who has one, would pushing the projector back a bit further from the wall in order to get a 160 inch image cause too much of a reduction in brightness or image quality? Would the image still be in focus?
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post #2 of 3 Old 09-18-2019, 07:03 PM
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Focus is the main issue. If you've ever worked with closeup photography you would know that depth of field is very difficult to maintain, and this is the limiting factor with size.

Brightness is irrelevant as projectors with under 1,000 lumens claim they can deliver a 300" image size. In fact, they can typically go even larger without losing focus, but at about 100" or so, you lose the brightness.

Stay within manufacturer spec with UST projectors.

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post #3 of 3 Old 09-18-2019, 07:06 PM
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Possible to push a UST PJ somewhat past the max image size?

Quote:
Originally Posted by sec1has View Post
Generally, it appears most UST projectors are rated for a max image size of 150 inches. For anyone who has one, would pushing the projector back a bit further from the wall in order to get a 160 inch image cause too much of a reduction in brightness or image quality? Would the image still be in focus?


Most UST’s are only rated up to 100”-120”. The Dell and Xiaomi UST’s are the only ones I know of that can go up to 150”s. Also, the ceiling height can become an issue as well. As you move the projector out from the wall the bottom of image becomes higher and higher above the projector. That said, usually the ratings are conservative and you should be able to eek out a little larger screen size without having distortion or focus issues. This can’t be guaranteed of course, take that for what is. So please don’t blame me if it doesn’t work.

Last edited by bix26; 09-19-2019 at 01:28 PM.
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