![]() The colours of the robots are vivid and the landscape looks natural as they chase the eponymous hero through the forests and out into the rocky terrain under the piercing turquoise sky. With this better-informed exposure, we get that bold, brassy feeling that 4K should deliver. Ultimately, while this isn't ideal, it is a price worth paying. The trade-off is that it’s easy to catch the Optoma adjusting the on-screen light levels each time the shot changes. Without it, the picture lacks some punch. Optoma’s Dynamic Black image processing helps make up for this by adjusting the brightness parameters in real time. ![]() HDR10 acts as a guide for the UHD42 for each scene, but it’s not enough for a budget machine such as this to really get the most out of its limited contrast ability. That means that they can’t benefit from the frame-by-frame contrast information delivered through Dolby Vision and HDR10+ metadata. Almost all home projectors will only support the HDR10 and sometimes the HLG HDR standards. To get that depth, you’ll need to use Optoma’s Dynamic Black setting and that comes with some performance costs. It’s a level of darkness far beyond what you get with the five-star Epson EH-TW7000 or the pricier, Award-winning Epson EH-7100. ![]() It’s a light-reflecting approach, rather than a transmissive one, and that allows for some excellent black depth as we watch the opening sequences of Cybertron with Bumblebee on 4K Blu-ray. While that’s normal for a projector at this price, it’s worth noting that Optoma has chosen to go with DLP rather than the 3LCD technology preferred by Epson. The Optoma UHD42 uses a 0.47in chip, which has a 1080p physical mirror matrix and uses four-phase pixel shifting to quadruple the resolution and create the full 4K, 8.3 million on-screen pixels.
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