Color modes are important for a projector. If you are going to use it in a business environment and you want the ability to switch to a Video mode when appropriate, or to a color-calibrated mode such as sRGB so you can ensure the image is as close to what the artist intended at least in regards to the projectors image capabilities.
The ZU506T-W has a few modes. Presentation, Bright, HDR, Cinema, Game, sRGB, DICOM SIM and User. This rounds out just about any use case I can think of. Our of the box, the Optoma was in Presentation mode and looked very nice connected to my MAC. The whites and grays are even and the colors looked good.You can see images of each of the Modes above. Remember DICOM SIM is for viewing Xrays, which is why the color is way off. The grey scale reproduction is spot on though.I found that sRGB was my favorite viewing mode.
The colors were sharp and even, the white was easy on the eyes and I could see all the small text clearly. The presentation was a little hot for me and the whites were overpowering and some of the colors seemed a bit washed out. The bright mode was not as bad as you find on a lot of products. This is usually where they find their brightness specification. It was washed out and the colors suffered. However, if you were in a well-lit room and needed the extra brightness this would be a completely useable choice.
Cinema was my next choice for great picture quality. The colors and whites looked great. The image was clear and sharp. Nothing was overbearing or washed out.
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Even when viewing videos, I felt sRGB and Cinema were a toss-up. Video performance was good. I don’t think the HDR mode was fully implemented. It did not have the fantastic color brightness I see in-home products. Cinema was much better looking.The ZU506T-W did a great job displaying text. The DLP imager with that 1920 x 1200 WUXGA resolution did a great job. Even with the small 8 point font, it was clear and crisp. It easily connected to my Powerbook as well as my win10 laptop. Having HDMI on so many devices makes switching sources so much easier than it once was.