Low Lamp Mode. Economic mode reduces brightness by about 33% compared with Normal mode. There is also a SmartEco mode, which isn't an eco mode in the usual sense. It works much like an auto iris to make dark scenes darker, lowering power usage by as much as 70% and extending lamp life.
Zoom Lens Effect on Brightness. In the full telephoto setting, the 1.3x zoom drops the brightness by only 6 percent, which is not enough to notice or bother considering when positioning the projector.
Video Optimized Lumens. Starting with the default settings for Vivid TV, adjusting the Hue for red and green gives a close match to a reference image without any loss of brightness. It also delivers a dark black along with excellent contrast and sense of three dimensionality.
The measured 1528 ANSI lumens may be too bright if you don't want a really big image. It can light up a 180" diagonal 1.0 gain screen in a dark room or 110" with moderate ambient light. Dropping it into its eco-modes will be a good option for those who need no more than about 120" diagonal in a dark theater room.
In addition, for smaller screen sizes, the Cinema color preset offers similar picture quality with a little lower contrast at a still bright 1088 ANSI lumens. Vivid TV in Economic mode delivers just a touch lower brightness, at 1021 lumens. The Cinema preset combined with Economic power mode is 726 ANSI lumens--still bright enough for a 140" diagonal 1.3-gain screen in a dark room.
Video Performance. The BenQ HT2050A offers a highly watchable image in all of its color preset modes. Color accuracy, contrast, black level, shadow detail, and sense of three dimensionality are all among the best available for a projector in this price class, particularly with the Vivid TV color preset.
Color Preset Mode Performance. As with most projectors, the HT2050A's brightest mode has a green bias, but the green shift in this case is so slight that most people won't notice it without comparing it to a reference image. In addition to being within an acceptably realistic range, colors are also nicely saturated. If you need the extra brightness to stand up to ambient light--in a family room during daytime for example--it is easily up to the task.
Vivid TV eliminates the green bias and offers even better color saturation. A particularly nice touch is that straight out of the box, the mode's Brightness setting is properly adjusted to show the darkest gray levels possible without brightening the black level, which ensures you get the best shadow detail the projector is capable of. A test image shows that the mode loses only the two darkest shades of gray, turning them to black, which means it will lose a minor amount of shadow detail, but not much. Default settings for Game and Cinema modes are both close to Vivid TV for color accuracy, but not quite a match for contrast and three dimensionality.
3D Performance. The HT2050A supports Full 3D with DLP-Link glasses only, with its strengths for 2D image quality carrying over to 3D. In addition, the HT2050A handles 3D-specific issues well. I saw no crosstalk in my tests and just a hint of 3D-related motion artifacts. There's only one 3D color mode, but you can change many of the settings, including turning Brilliant Color On or Off. On all projectors 3D is always dimmer than 2D. However, the HT2050A's 3D mode does not lose quite as much brightness as most competing models.
Brightness uniformity. The measured 61% brightness uniformity is low for a home theater projector, although it is in the typical range for most entry-level models. BenQ says that the lens is identical to the one in the BenQ HT2050 that we measured at 67%, so this may simply be a variation from one unit to the next, or a minor problem with the particular unit we tested.
On-board audio. If you install the HT2050A in a home theater or family room, you'll want to pair it with a high quality sound system. But if you need to use the onboard audio, the 10-watt mono speaker offers high enough volume for a large room, with highly usable sound quality and separate audio modes designed for Cinema, Game, Music, and Sports. There's even a User mode that lets you adjust equalizer settings to taste.
Fan noise. BenQ rates the noise level for the HT2050A at 29 dB in Normal power mode and 27 dB in Economic mode, but there's no obvious difference between the two when you switch modes, since the fan speed varies based on internal temperature. You can hear the noise as a low pitch white noise in quiet moments from anywhere in a mid size room if you listen for it, but I can hear a similar level of ambient noise in any room of my house on a quiet day. Either one is the kind of unchanging background noise that city dwellers, at least, tend to block out.
BenQ recommends using High Altitude mode at 4921 feet and above. In both Normal and Economic lamp modes, it adds a higher pitched overtone and boosts noise level enough to be impossible to miss in quiet moments. If you need the mode, consider installing the projector with some noise baffling material around it.
Input lag. The 16.4 ms input lag in Fast mode puts the HT2050A in the front ranks for gamers who want a projector that doesn't slow them down when reaction time matters.
Connection Panel Inputs:
All of the ports are on the back panel. You can also add a $399 wireless FHD kit for uncompressed streaming at up to 1080p 60Hz. The kit includes a bracket that lets you mount the receiver unit to the outside of the projector. The transmitter attaches to the source. In addition, you can add a $39 WiFi dongle for wireless connection to mobile devices.
Throw Distance. The throw distance for a 120" 16:9 image for the BenQ 2050A ranges from about 10 feet at its widest-angle setting to about 13.1 feet at its full telephoto setting. For the throw distance range for the image size you want, you can use the BenQ HT2050A Projection Calculator.
Vertical offset. With the projector sitting on a table and the lens shift in its lowest position, we measured the bottom of the image at roughly 5% of the image height above the centerline of the lens. With the vertical lens shift at the highest level, the offset was about 16% of the image height.
The vertical offset will work nicely with the projector placed on low table in a family room or inverted in a ceiling mount. Placing the projector on a higher shelf behind the seats will usually force you to tilt it downward to hit the screen. This is best avoided, since you'll then need to use keystone adjustments to square off the image, which can reduce lumen output, soften edges, and add artifacts to fine patterns in the image.
The BenQ HT2050A is an impressive projector for the modest price of $749. It offers excellent color accuracy, contrast, three-dimensionality for 2D video, a solid black level, and top tier shadow detail for the price. The combination makes it an excellent choice for traditional home theater, while the high brightness--and particularly the acceptably realistic color quality in the brightest mode--make it a good choice in rooms with ambient light as well. And it delivers a brighter 3D image than most of its direct competitors.
At about 7 lbs the HT2050A is quite portable. And if you want to move it from room to room or out to the backyard for a movie night, its onboard audio provides good enough sound quality and high enough volume to handle the job.
If you want a VERY BIG big screen experience, the BenQ HT2050A can provide it. Although BenQ recommends a maximum 180" diagonal image for best sharpness, it is bright enough to go even larger. And for high light levels, the brightest mode delivers good enough image quality to use without a second thought.
Finally, for gamers, the 16.4 ms input lag is a convincing argument to pick the HT2050A. For home theater, a family room, setting up in the backyard, and even 3D viewing, the BenQ HT2050A is a solid and competitive value at $749.
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