9. GUI – ImageThe Output resolution menu is displayed.Image 9-18Advanced menu — Output resolution2. Select the desired output resolution.Possible resolutions:- 4K UHD: 4k images, using the actuator at normal frequency.- 4K UHD S: 4k extra sharp images, using the actuator at a higher frequency- WQXGA: 2k images. In this mode, the actuator is disabled.If the main purpose of the projection is image (pictures, movie, or similar purpose), use the 4K UHD outputresolution for the best image at the highest light output.If the main purpose of the projection is text (spreadsheets, presentations, or similar purposes), use the 4KUHD S output resolution for the for the most stable and sharpest output.9.6 HDR – Perceptual Quantizer (PQ)About PQPerceptual Quantizer (PQ) is an electro-optical transfer function (EOTF) that allows for the display of High Dynamic Range (HDR)content with a luminance level of up to 10 000 cd/m² and can be used with the Rec. 2020 color space.If your provided HDR content has been mastered with PQ (e.g. Dolby Vision or HDR10), you can adapt the luminance on screen toadapt to the provided content.For optimal display of HDR content, this is just one value that will influence the projected image. When enter-ing the desired screen luminance, take into account the distance of the projector to the screen and the qualityof the screen used.How to set the PQ?1. In the main menu, select Image → Advanced → PQ.Image 9-19R5906070 HDX 4K 07/11/2017 93