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Topic: Motion simulator screen(s)
Joined: Mar 28, 2005
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Quote (Gadget11 on Jul 12, 2022 3:58 PM):
it got me thinking, is there a single projector that can be used to fill a curved screen using some warping software ?

A big issue is that projectors are designed to focus on a flat screen. So, when you curve the screen not only is the image warped, but more importantly - it loses focus. So, when you go to a movie theater and they are using a curved screen be aware that the projector is 2x or further from the screen and that they use a lens designed specifically for the projector and the screen that is in use. You don't get this with cheap (sub $50,000) projectors. So, to get a curved screen with a high curvature (like more than a few inches) you really need to get into multiple projectors and the more, the better. This is why actual professional simulators may use half a dozen or more projectors. It allows for increased resolution, a brighter image, and a MUCH sharper image.

Quote (Gadget11 on Jul 12, 2022 3:58 PM):
is 3840×2160 (4K), and 7680 x 4320 (8K) available in projectors ?

There is pixel shifting 4K DLP on the cheap end as well as pixel shifted half/full 4K from LCD. There is also native 4K out there from Sony and JVC and again with high dollar DLP, like you see in theaters. But, pricing starts getting really expensive. The JVC which can pixel shift up to 8K resolution with HDMI 2.1 inputs runs about $25,000. And that IS a deal. So, probably not for you.

Quote (Gadget11 on Jul 12, 2022 3:58 PM):
are modern cinemas using a type of projector or do they still use film ?

New movie theaters are using 3-chip DLP projectors most often and are entirely digital. Movies are sent digitally to the theater and are fully controlled remotely. They come from companies like Christie Digital and Barco. They run well over $50,000 with larger models costing well over $100,000.

Quote (Gadget11 on Jul 12, 2022 3:58 PM):
is there an older cinema technology that could be bought for sensible money and used in the home ?

No. It's a completely different way of doing movies and the push to digital cinema while not brand new, is still relatively new. Keep in mind you are kind of asking if buying a old Ferrari makes sense. While you may be able to get an old Ferrari for not as much money as a new Ferrari, it is STILL a Ferrari. This means that the first time you get an oil change you will be spending $1,000 or more. If something goes wrong, the parts will be super expensive.
The same is true when buying an old high-end projector. You don't just get the high-end quality, but as a used product it carries high-end repair costs along with it.

I would stick with models like the BenQ 2150ST or 1080ST on the used market. The models similar to those listed in the videos linked previously. The software is going to be a tough one to buy, but it clearly works well and is actually quite the bargain compared to outboard hardware-based edge-blending products.
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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