Optoma PK320 Pico Projector Review
Great peak brightness is offset by an inaccurate color gamut.
You have the ability to adjust the contrast, brightness, gamma, color range, and the LED power mode. Finding all of these modes in one place is a challenge however. You can access them by hitting the circle button when you are engaged in a piece of content, or you can get to about half of these settings in the main menu. The gamma setting is only in the main menu, and not on the content menu.
We used the highest LED brightness mode instead of movie mode because it had the most accurate color temperature, right around 7000K. We adjusted the contrast up three notches, and the brightness down one notch for best picture quality. We left the gamma where it was and the results were fantastic.
We tend to leave color range at standard because it usually oversaturates the colors like woah. However, on our first color test, we saw that the red and blue values on the gamut were significantly undersaturated and decided to give the expanded color range a chance. This served only to make the color temperature highly erratic and somehow caused it to score worse on the color gamut accuracy. It's best to leave the color range alone.
There are no video modes on the Optoma Pico PK320.
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