I need a projector recommendation...?

Q. The throw isn't too big of an issue. I can mount on the ceiling if necessary. The screen is approx. 35 feet diagonally (in widescreen format). I would like to fill most of not all of the screen and have a decent picture. There is no natural light, and there will be very little ambient lighting (cinema sidelights). Suggestions?

I was thinking something similar to this:

http://www.bestbuy.com/site/Viewsonic+-+Pro8500+3D+Ready+DLP+Projector+-+720p+-+HDTV+-+4:3/1405293.p?id=1218255646227&skuId=1405293&cmp=RMX&ky=2oh0NrwOl4j1qjMx3Oy2gXfVGhMUl0WiJ&ci_src=11138&ci_sku=1405293&AID=10474050&PID=1811386&URL=http://www.bestbuy.com/site/Viewsonic%2B-%2BPro8500%2B3D%2BReady%2BDLP%2BProjector%2B-%2B720p%2B-%2BHDTV%2B-%2B4%253A3/1405293.p?id%3D1218255646227%26skuId%3D1405293%26cmp%3DRMX%26ky%3D2oh0NrwOl4j1qjMx3Oy2gXfVGhMUl0WiJ%26ci_src%3D11138%26ci_sku%3D1405293&ref=39&CJPID=1811386&loc=01

But instead of a 300 inch (24 foot) screen size, I need a 35 foot screen size.

Answer
First off, the NEC NP-PA550W âpresentationâ style projector recommended by one of the other respondents would be a downright awful choice for such a large screen:

NEC PA550W Projection Calculator - Throw Distance and Screen Size
http://www.projectorcentral.com/NEC-PA550W-projection-calculator-pro.htm

The native resolution is not high enough for such a large screen; youâll run a very real risk of visible picture structure, including what is referred to as the screen door effect (or SDE.) Large screens, such as a 35-foot (420-inch) screen, are best paired with a high resolution projector consisting of one or more high (pixel-spacing) aperture ratio microdisplay panels and a native resolution of 1080p, 2K, or higher.

Also the NP-PA550W has nowhere near enough light output even when using the shortest throw NP11FL lens, which allows the projector to be as close to the screen as possible. Youâll only obtain approximately 7 fL at maximum light output when paired with a 206- Ã 366-inch, 1.3 gain screen. The standard recommended minimum luminance is 16 fL for a darkened theater; 7 fL is simply untenable.

A projector, like any device that emits light, is subject to the inverse-square law of physics: the luminous intensity is inversely proportional to the square of the distance from the source. Also the projector must be placed at a specific distance (for a given fixed lens) or within a specific range of distances (for a given zoom lens.) Large screens, such as the one you desire, require correspondingly long projector throw distances. So even with a short throw lens to help you keep the projector as close as possible you will still need some serious âhorsepowerâ to obtain the minimum recommended 48 to 54.8 candela/square meter (cd/m²) or 14 to 16 foot-lambert (fL) of luminance, which translates into a big, expensive, large venue or digital cinema projector. Just be aware that such projectors are not only costly to purchase, but also to operate and maintainâ¦and they require regular maintenance. Lamps are also expensive, which, as you might expect, increases the cost of relamping; thereâs no way around it. High intensity lamps also draw a lot of power and produce a lot of heat.

You can readily offset some of the light output issues by using a higher gain screen material. However once the screen gain exceeds 1.3 issues begin to arise that become more and more deleterious as the screen gain increases.

As an example, using the 68,000 USD Digital Projection TITAN 1080p-700 projector with their number 105-607 fixed short-throw lens at a throw distance of 20 feet 6 inches will project a 35-foot image, i.e. 206 H Ã 366 W inches, with roughly 19 to 23 fL on a 1.0 to 1.3 gain screen, respectively, when running at maximum light output.

Digital Projection TITAN 1080p-700 Projector
http://www.digitalprojection.com/BrowseProjectors/SeriesList/ProjectorList/ProjectorDetail/tabid/87/ProjectorId/52/MarketTypeId/10/Default.aspx

So ultimately you need a large venue, auditorium, or digital cinema projector along the lines of a Christie Digital, Barco, Eiki, Digital Projection, projectiondesign, SONY, et al.
 

RESOURCES

Barco
http://www.barco.com

Christie Digital Systems
http://www.christiedigital.com

Digital Projection International
http://www.digitalprojection.com

Eiki International
http://www.eiki.com

NEC Display Solutions
http://www.nec-display.com/global/business/cin_movie.html

Panasonic Large Venue Projectors
http://www.panasonic.com/business/projectors/index.asp

projectiondesign as
http://www.projectiondesign.com

SONY Projectors
http://pro.sony.com/bbsc/ssr/cat-projectors/
 

I want a projector to watch movies with but have a budget of £250.?

trogbros

It seems an entry level "home theatre" projector is going to set me back at least £450 which is more than my budget, but after a bit of digging around it looks like there are some business/presentation projectors out there (Infocus X16 being one of them I think), which work quite well for showing movies too. This is all a bit new to me so if anyone out there has any more info or advice it would be very welcomingly recievced! Thanks guys!

Answer
I recommend Acer X1160Z Projector.Indulge in cinematic entertainment and high-intensity gaming right in the comfort of your own home. Whether for SMB use, family entertainment, or education, the Acer X1160 digital projector is designed to bring colours to life with its 2000 ANSI Lumens brightness and 2000:1 contrast ratio. This value projector features a 6-segment colour wheel accompanied by Acer ColorBoost and SmartFormat technologies for rich, vibrant imagery and complete wide format support .

Quick Start
Auto Shutdown
Instant Pack
PIN Security
Digital Zoom and Pan
Low Noise Level - 28dBA
Vertical Keystone Correction
Eco Mode

Acer X1160Z Projector, DLP, 800x600 dpi, SVGA, 2000 Alu, with Carry Case and Remote Control
Price: £239.99 Delivered FREE in the UK
reference: http://www.amazon.co.uk/Acer-X1160Z-Projector-800x600-Control/dp/B001G17N9S/ref=sr_1_1?ie=UTF8&s=electronics&qid=1235321572&sr=1-1&tag=winkkk-21&linkCode=ur2&camp=1634&creative=6738

hope that help.

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