What is a lumen? This is a measure of brightness. The more lumens, the brighter. This is important because you can view the image without needing to turn out the lights in the office or boardroom. What is a 2x zoom on a projector? The 2x zoom allows a person to fill a 60-inch screen from either 5 or 10 ft from the screen. This is important because if a person is in a small office, all can still see the projector. Or, if it is positioned in a boardroom there will not be a problem with the image spilling off the screen. What is keystone correction? If a projector is positioned above, below or to the sides of a screen, the image will look wider on one side and the image will look distorted. The keystone correction uses software to adjust for this by compressing the wider side. The listed degrees in the specifications show how far from off center this can be adjusted for. How many decibels are the projectors? Approximately 38. There is a low noise mode that reduces the brightness of the image and decibels by about 15%. Can the projectors be mounted to a ceiling? Chief Manufacturing at http://www.chiefmfg.com produces mounting brackets for our projectors. Here are the mount part numbers for our projectors. Model: Bracket #: Casio XJ-350 LCDA-215C Casio XJ-360 RPA-116 Casio XJ-450 RPA-067 Casio XJ-560 RPA-067 The XJ-450 is a invertible projector, so the mount is on the bottom of the projector and the projector gets inverted on the ceiling. The XJ-350 is a non-invertible projector, but does have negative keystone correction, so the mount is more like a wrap around shelf. They both are mounted on 1 1/2" NPT pipes from the ceiling. For more Frequently Asked Questions for Projectors, please go here. |