Except for DICOM, the SDR modes all deliver nicely saturated, vibrant color for graphics straight out of the box. The BU50NST offers eight predefined color modes for SDR (standard dynamic range) input. Limited 3-year warranty (all parts and labor including light source).
5000 LUMEN PROJECTOR BLUETOOTH
Onboard 5-watt stereo speakers HDMI-ARC audio out port supports Bluetooth audio out with AV Sync adjustment. Smart Connection feature for easy wireless connection for screen sharing supports Miracast and DLNA. HDMI-CEC support for control of connected sources. Digital inputs include HDBaseT and 2 HDMI 2.0b (HDCP 2.2) ports. Advanced edge adjustment with 12-point warping adjustment, including 4-corner correction. Generous lens shift: ± 50% vertical ☒0% horizontal. DICOM simulation mode for medical education and presentations. Frame interpolation for smoothing motion. 24/7/365, virtually maintenance-free operation. 3,000,000:1 dynamic contrast ratio rating. 3840x2160 (4K UHD) native resolution with a 0.47-inch DLP chip using XPR pixel-shifting. Here's a more complete list of the BU50NST's key features: If you prefer to use an external audio system, one of its HDMI ports supports HDMI-ARC, and there's a 3.5mm analog audio out port and Bluetooth speaker support with an AV sync control. Note also that the BU50NST includes a pair of 5-watt stereo speakers, which deliver good enough sound quality to make them worth using, along with high enough volume for a medium to large size room. (For the range for your screen size see the ProjectorCentral LG ProBeam BU50NST projection calculator.) And unlike the brightest mode in most projectors, which are best avoided because of obvious color shifts, the BU50NST's brightest mode delivered accurate enough color to make it our preferred choice for presentations unless they're heavily dependent on photorealistic images. Throw distance for a 170-inch image ranges from roughly 16.1 to 25.8 feet. I measured the BU50NST's brightest predefined mode at 4,329 ANSI lumens-enough to light up a 170-inch diagonal, 16:9, 1.0-gain screen in moderately bright ambient light. If you need to correct keystone or other geometric distortion, a 12-point warp adjustment offers four-corner correction, one-point barrel distortion correction on each vertical edge, and two-point barrel distortion correction on each horizontal edge. With the projector sitting on a table and the lens in its vertically centered position, the vertical shift is +/- 50% of the image height, while the horizontal shift is +/- 20% of the image width. The BU50NST is designed to be placed either on a flat surface or inverted in a ceiling mount, and it offers flexible positioning thanks to its lens shift and 1.6x zoom. Vertical and horizontal lens shift controls are found on the side of the BU50NST. 
However, LG doesn't suggest it for that application, and in our tests, contrast and HDR shadow detailĬame up short for home use.
Note too that based on the BU50NST's 16:9 native aspect ratio, its HDR support, and some of its menu choices-which include a game mode, a Cinema Home mode, and LG's version of frame interpolation-you could be forgiven for thinking that it must be suitable for a brightly lit family room for movies, videos, and game playing. Some of its noteworthy features include HDR support, a built-in Web browser, support for DLNA, and support for wireless connection to mobile devices, so you can show presentations easily from a phone or tablet. So while it will fit in a tighter space, it's not much easier to handle during setup. Note that it weighs 21.4 pounds however-about as much as most of its competitors. The BU50NST's small size-12.8 x 14.6 x 6.1 inches (HWD)-is one of its more appealing features.
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