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Topic: What happens if you go under minimum listed screen size?
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Joined: Feb 3, 2018
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Hi,

I've been looking to get the LG HF85JA projector (or rather, the HF85JG given that I'm in Japan) because my apartment is quite small and I do not have the space needed for a long throw projector.

I just noticed though, that the specs for this projector list screen size as 90" to 120". Does that mean that it will not work for smaller screens that are, say, 60"? Will the image just spill over the edges of the screen? The problem is (again, due to small apartment) that the biggest standing screen (looking to avoid wall mounted screens since I'm not allowed to hammer anything into the walls) I can fit is probably 60"..

I'm rather keen on the HF85JA just because it seems to have all the specs that I've been looking for (long lasting light source due to laser/ultra short throw/supporting 1080p), but if it can't fit on a 60" screen then I may need to reconsider.. or try to figure out other screen alternatives. Any advice would be appreciated..

Thanks in advance!
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Joined: Mar 28, 2005
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Ultra short throw (UST) projectors have very limited optics and that limits their screen size that they are able to focus within. If you go smaller or larger, the image will be out of focus. It is unfortunate, but it is typical of ultra short throw models like this.

You also MUST make sure that whatever screen you use is extremely flat. Any distortion to the screen, with a UST projector, will result in severe image degradation due to the sharp projection angle.

At 60", you should get a flat panel, not a projector.
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 Feb 3, 2018 11:49 AM):
Ultra short throw (UST) projectors have very limited optics and that limits their screen size that they are able to focus within. If you go smaller or larger, the image will be out of focus. It is unfortunate, but it is typical of ultra short throw models like this.

You also MUST make sure that whatever screen you use is extremely flat. Any distortion to the screen, with a UST projector, will result in severe image degradation due to the sharp projection angle.

At 60", you should get a flat panel, not a projector.

Thanks AV. That is disappointing though...
I do currently have a TV but plan to get rid of it because the Japanese broadcasting company hassles everyone who owns a device that's capable of receiving a broadcast signal to pay for the service... even if they don't use the service! You used to be able to get away by ignoring the collectors, but the Japanese court recently ruled that one is legally required to pay so... I want to get of the TV now.

I was initially looking at monitors, but I want something that's bigger than 42" (the size of my current TV), but I couldn't find anything that seemed reputable, hence why I started looking at projectors. I don't suppose you have any recommendations in that area by any chance?
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http://www.projectorcentral.com/Epson-Home_Cinema_LS100.htm

It can hit a 70" diagonal and uses a laser light engine. Will last forever basically and will actually deliver the light output for decent use.

I'm not sure what displays are available without an integrated tuner, but I would check out some of the commercial displays from Panasonic which may be able to deliver what you need.

Weird law.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.