Conference Room Projector
January 10, 2013
Brightness and Uniformity It is not often that we see a projector exceed its white screen brightness specification, but the WD720U is rated at 4,300 lumens and with Brilliant Color set to maximum, it put up 4,610 lumens in the Presentation preset mode. Other Preset brightness measurements were: Standard - 2,420 lumens, and Theater - 1,105 lumens. The Low (Eco) lamp setting reduced brightness by about 23%. Uniformity measured 83% with the bottom of the image slightly brighter then the top.
Lamp Life The lamp in the WD720U is rated at 3,000 hours when used in Standard mode, but that number stretches to 5,000 hours in Eco mode (or Low mode as Mitsubishi calls it). A replacement lamp is available for $349.
Image Size and Offset. At a 100" diagonal, the bottom of the image is approximately 15" above the lens centerline. This works well for cart and tabletop mounting, and it is also a good offset for a ceiling mount. In addition, you may be able to shorten the ceiling mount drop tube by using the vertical lens shift feature.
Menu Selection and Navigation The menu is layered in some cases (e.g., fine picture adjustments in the Color Management menu) but fairly simple to navigate. The only drawback is that on re-entering the menu system, you do not return to your previous menu location which is a minor annoyance when making fine adjustments.
Placement Flexibility.Two useful features of the WD720U are its generous zoom ratio of 1.5:1 and it vertical lens shift capability. Placement distance from the screen can vary from 9'10" to 14'9" for a 100" diagonal image. However, the more important aspect is the vertical lens shift, especially when dealing with the constraints of ceiling mounts. A 100" image can be moved ±8" to accommodate any installation errors.