Optoma UHD51A 4K UHD Home Theater Projector + 100" Fixed Screen.
Good condition. No box. Lamp usage 65 hours.
Optoma – with its brand new UHD51A 4K UHD projector, is one of the first projector manufacturers to offer up a smart projector design for the mainstream of the market. This projector is 4K capable using the the smaller/less expensive of the two 4K UHD resolution DLP chips. Meantime, with the UHD51A, you should expect a very sharp image on 1080p and lower resolution content, and even sharper with 4K content. The UHD51A adds other features beyond the Alexa support including frame interpolation (FI), Full 3D support, a built-in USB media player that allows 4K video playback, and support for wireless display from mobile devices with an optional Wi-Fi dongle.
The feature set is better almost all of the other 4K UHD DLPs in the price range, but that’s fair, as it is one of the most expensive using the 1920x1080x4 pixel shifting chip.
The Optoma UHD51A offers very good 4K image that is clean and very detailed, its HDR capabilities are good enough for a projector in this category, it is 3D capable and it has very good overall motion performance. As for connectivity it offers a great variety of ports that surpasses most of the competition. And in all this we should not forget the wealth of features it is equipped with like the built-in media player for example among others in addition to being one of the first projectors that is smart enabled by adding support for Amazon Alexa and Google Assistant.
On the opposite side being a low priced 4K projector means that a few things would naturally not be so good. Black levels in general are so and so and although for many people will be more than enough for image quality fans it will be very obvious. Of course in this price we haven’t seen any 4K projector offering very deep blacks so this is not a problem of the Optoma specifically but seems to be the general standard for this price range. Also brightness although was adequate it measured far less than what Optoma claimed it to be. Input lag was also measured very high making it difficult to suggest this projector for serious online gaming.
Display Technology DLP 4K UHD chip
Native Resolution 4K UHD 3840×2160
Brightness 2400 ANSI Lumens
Light Source Lamp
Lamp Life 15000/10000/4000 hours (Dynamic/Eco/Bright mode)
Throw Ratio 1.2 – 1.56:1
Zoom Type 1.3x Manual
Lens Shift +10% vertical
I/O Connectors HDMI 2.0*2 , VGA (RGB/YPbPr), Audio in 3.5mm, Audio out S/PDIF, Audio out 3.5mm, 12V trigger, RS232, RJ45, USB-A 3.0 (Power, 1.5A), USB-A (service), USB-A (wireless dongle), USB-A (Alexa)
Speaker (Watts) 5W x2
Weight (Kg) 5.3
Dimensions (W x D x H) (mm) 393 x 282 x 118
Aspect Ratio 16:9 Native, 4:3 and LBX Compatible
Projection Screen Size max. 300″
Projection Distance 1.05 – 8.05 m
Projection Lens F/1.94 to 2.23, f/12.81 to 16.74
Computer Compatibility UHD, WQHD, WUXGA, FHD, UXGA, SXGA, WXGA, HD, XGA, SVGA, VGA, Mac
Video Compatibility 480i/p, 576i/p, 720p(50/60Hz), 1080i(50/60Hz), 1080p(24/50/60Hz), 2160p(24/50/60Hz)
Horizontal Scan Rate 31~135KHz
Vertical Scan Rate 24 – 120Hz (120Hz for 3D)
Displayable Colors 1073.4 million colors (10 bit)
Noise Level 25dB (Eco mode)
Power Supply 100240V, 5060Hz, auto-switching
Power Consumption Bright: Typ. 337 W Max. 371 W @ 110VAC, Typ. 323 W Max. 355 W @ 220VAC | Eco: Typ. 247 W Max. 272 W @ 110VAC, Typ. 239 W Max. 263 W @ 220VAC
Lamp Type 240W
Return & Refund Policy
• All Pre-Owned items have been tested before listing.
• NO WARRANTY.
• We encourage buyers to test and verify the equipment condition at our showroom (1 Coleman Street, The Adelphi, Unit 03-35) — pre-owned condition as shown on our listed page.