What is the projection distance? What is the focal angle?
578443
10 yards is the peak brightness. At that distance they hurt your eyes, and traffic hates me which is why I bought them for my motorcycle. I want to be seen! The exact angle I can not determine. it is a very tight pattern that does not spread out until about 45 feet.
578444
Not sure on the angle and doesn't seem to brighten very far out. Unless you are going to use multiple pairs with different focal points I'd stick with high wattage halogen or a full led bar.
1581758
As with any projected image, the distance of the projector from the surface you're projecting it on to has a huge effect on the size of that image. We have found that the image is most clear and large when the projector is a minimum of 15' feet away from the surface. This is not a good product to be used in a small space.
1743800
that would depend on the how big of a screen you want and what angle you are projecting.I have my projector mounted on the ceiling and projecting a 110" image on my wall. I have rather good definition although the angle form the ceiling mount makes one corner of the projection not as clear as the rest,(there is a lens focus that you adjust for different distances) but from what I have read on every projector this is a very common problem. I would recommend this projector over any other. between it's value and clarity its a great buy for a big screen without the big price. let me know if you have any other questions. that would depend on the how big of a screen you want and what angle you are projecting.I have my projector mounted on the ceiling and projecting a 110" image on my wall. I have rather good definition although the angle form the ceiling mount makes one corner of the projection not as clear as the rest,(there is a lens focus that you adjust for different distances) but from what I have read on every projector this is a very common problem. I would recommend this projector over any other. between it's value and clarity its a great buy for a big screen without the big price. let me... » Read More that would depend on the how big of a screen you want and what angle you are projecting.I have my projector mounted on the ceiling and projecting a 110" image on my wall. I have rather good definition although the angle form the ceiling mount makes one corner of the projection not as clear as the rest,(there is a lens focus that you adjust for different distances) but from what I have read on every projector this is a very common problem. I would recommend this projector over any other. between it's value and clarity its a great buy for a big screen without the big price. let me know if you have any other questions. « Show Less
2219801
Each of the focal lengths for the 4 lenses are listed below: 1.5x Lens: 19.7 inches 2.0x Lens: 9.8 inches 2.5x Lens: 6.6 inches 3.0x Lens: 4.9 inches Please note that the focal length does not mean that you must hold the magnifier that far away from the object. It just means that's about the distance where the magnifier has its highest magnifying power.
1045145
I didn't check myself but I mounted my projector 14 feet away as well (I think that was a recommended distance) and It played amazing hd quality on my 100 inch screen and its bright! I would love to know how much distance you can get outside. It'll save me from testing it out on the side of my neighbors house.
930690
about 5 feet 6 inches, http://www.projectorcentral.com/BenQ-W1080ST-projection-calculator-pro.htm
315918
Dear Sir I'm sorry I can't answer for your question precisely as I am in Korea now while the projector is in my house in the US But I could answer it correctly when I get home in late Feb if you'd still want Or you could go to Amazon.com - Epson projector - specification then you might find some information regarding the projection distance. Good Luck and a Wish you happy new year
2266762
Hi Forest, as for distance as this projector has a zoom function, the range for a 100 inch screen is between 5'3" and 6'4". Not certain what to recommend re ceiling mount, I adapted my old Dell mount to suit. I find this site to be really useful when considering what to buy.... http://www.projectorcentral.com/BenQ-W770ST-projection-calculator-pro.htm
2031060
Projection range of the laser beam is 5 m (up to 16 ft);Range projection laser point: 20 m (up to 60 ft);Accuracy: ± 0,5 mm / m (Up to ±3/16" @ 33-ft);
1521467
Alison,My distance from lens to screen right now is 10.5 ft and I get around a 80' images measured diagonally . I am sure you could project less than 10.5 ft and just have a slightly smaller image. Hope that helps-Mark
441981
I think it depends on your projector. I was surprised that I needed to be fairly close, maybe 5 to 6ft. I'm very happy with the screen, it's big, but easy setup and breakdown. Hope this helps. :)
2250991
Page 2 of http://www1.viewsonic.com/assets/149/27847.pdf shows projection distances and image sizes, I am using it at a 7' 10" projection distance to get 72" W = 41" H = 83" diag
1743803
that would depend on the how big of a screen you want and what angle you are projecting. I have my projector mounted on the ceiling and projecting a 110" image on my wall. I have rather good definition although the angle form the ceiling mount makes one corner of the projection not as clear as the rest,(there is a lens focus that you adjust for different distances) but from what I have read on every projector this is a very common problem. I would recommend this projector over any other. between it's value and clarity its a great buy for a big screen without the big price. let me know if you have any other questions.
1491447
I am working from memory, but we got a sixty inch screen from no more than five feet away. It may depend on your projector and its ability to widen the image. But, for the cost, this screen has proven to be highly effective for our needs in a rather tight space. Hope that helps.
844657
I'm assuming your referring to beam focus or dispersion. I don't have exact degree but this is more of a narrow focus beam. Probably no more than 20 degrees.
1045143
I didn't actually check the extremes so I probably can't give you a great answer. Have you checked out one of these calculators? http://www.projectorcentral.com/projection-calculator.cfm....It was helpful for me. I can tell you I'm projecting from around 14 ft and it looks great on a 133" diagonal screen. There's a decent discussion that helped me here: http://www.avsforum.com/t/1271155/throw-distance-optoma-hd20Hope that helps!
1596549
I have mine set for 10 feet away to project about a 45 inch screen. I bought a pull-down blind at Home depot for $50 that covers 7 feet by 5. Much cheaper than a projection screen.