In ProjectorsOK we have tested one of the best 4K home cinemas on the market right now, the Optoma UHD40. This projector comes equipped with the highest resolution available right now 4K UltraHD, equivalent to twice the FullHD, which gives us incredibly realistic images, perfect for watching movies on a large screen. In addition, the Optoma has a very high contrast of 500,000 to 1 that generates a very sharp image with very intense colors. The lens of the UHD40 is equipped with a lens shift that will allow us to adjust the image vertically to adapt it to the height of the screen.