Mark Davis
Mark Davis has been an excellent digital review editor in San Francisco for eight years and has a complete knowledge of cell phones, TVs, speakers and home theater DIY.
Articles By This Author
Optoma Announced ZU820T and ZU725T Mid-range Projectors
Optoma has announced two new projectors, the ZU820T and ZU725T. The products measure 486 x 433 x 176 mm and weigh 14.0 kg. The mid-range
Will Laser Projector Dim Over Time?
Laser projectors offer the minimum 20,000 hours of lifespan on the light, which is crushing the lamp based projector in terms of light source lifespan.
Is Laser Projector Safe for Eyes?
The laser projector is an excellent alternative to TV, usually with an ultra short throw design, which can be placed in front of the wall
Is Projector More Safe for Eyes than TV?
Projectors are more safe for eyes than TVs, is that true? This article will give the answer from the analysis of the imaging principle of
What is Bandwidth of Cable?
Bandwidth for cables refers to the range of frequencies used for the transfer of information through data cables. The broader the bandwidth the more data
Can Projectors Do HDR?
For manufacturers and projector users, in order to pursue upgraded specifications, HDR is of course important, but it is more important for flat-screen TVs than
Does the Projector Come with a Speaker?
Projectors basically have their own speakers, but the power of the speakers may be different. The sound quality of most projectors is not as good
Projector Connect to PC Shows No Image Troubleshooting
Why doesn’t the picture appear when the projector is connected to the computer? When the projection is connected to the computer, the picture cannot be
Can I Put a Projector at an Angle?
Ideally, you should put your projector on the centerline of the screen to get the correct and square image. But in various using senarios, we
Can 4K HDMI Cable Improve Image Quality?
Most of the projector nowadays will be equipped with HDMI interface, it has become the industry standard for digital content transferring. There must be some
Does Projector Gives Off Radiation? Is It Dad?
Does projector gives off radiation?”, the answer is YES. However, their radiations pose little danger. The projector emits a little radiation. The radiation of the
Optoma Released Cinemax D2 Plus Projector
The Optoma CinemaX D2 Plus has been released in Korea. The brand’s new UHD 4K ultra short throw projector has a laser light source, allows
HDMI 2.0 vs HDMI 2.1: What’s the Difference?
The difference between HDMI2.0 and HDMI2.1 are as follows. The biggest difference between HDMI2.0 and HDMI2.1 is bandwidth. The transmission bandwidth of HDMI2.0 is 18Gbps,
BenQ TH690ST Review – 1080P Home Theater Projector
BenQ TH690ST boasts a 1080p native resolution and a 500,000:1 contrast ratio. It measures 366 x 244 x 118 mm (14.4 x 9.6 x 4.6-in)
Christie Unveils New CP4425-RGB and CP4435-RGB Projector
Christie’s new CP4425-RGB and CP4435-RGB deliver up to 26,000 DCI lumens and 35,000 DCI lumens, respectively. Project vibrant content on an 89-foot-wide screen. Featuring Real|Laser
How is Sharp XG-EC60SWA Projector?
Sharp XG-EC60SWA is a business office projector. Sharp XG-EC60SWA adopts 3LCD display technology and traditional bulb light source. Sharp XG-EC60SWA has a brightness of 6300
Is 4D Keystone Correction Necessary for Projector?
The projector has high requirements for placement, angle, and levelness. Not only must it be facing the screen, but it must also be horizontal and
Epson Launches CO-FH02 Multi-Purpose Projector
Epson’s new CO-FH02 is a portable model which is easy to transport thanks to a more compact design. Let’s take a look at it see
Vivitek Introduces New DU4871Z Laser Business Projector
Vivitek launches high-brightness commercial laser projector DU4871Z. Delta’s projection brand Vivitek, a global leader in power management and video surveillance solutions, recently launched the
Locking Epson EH-LS12000B’s Lens Settings and Buttons Tip
You can lock the buttons on the projector to prevent anyone from using the projector. You can also lock the zoom, focus, and lens shift