Vivitek QUMI Color & Picture Quality
As usual, I started with my laptop connected via HDMI and fed the QUMI its native resolution (1280 x 800). In any picture mode, the QUMI provided a very nice, sharp image. In Bright picture mode (which sets Brilliant Color at 8), colors were a bit dark. Bright mode would probably be best with presentations that required good contrast, but not highly accurate color balance. Switching to Presentation mode resulted in a very good color balance, one that could be used with any source. Movie, TV and User modes also displayed good color, with a modest reduction in lumen output as compared to Bright mode. The unfortunate thing about Movie mode is that, although it has the best blacks, there is too much red in skin tones, making Presentation a better choice for video. Game and User modes were similar and sRGB mode leaned more toward Bright in its color profile.
Switching over to the QUMI’s VGA input (via the included adapter) resulted in some changes to both the Bright and Game modes. The Bright mode got brighter, as Brilliant Color was increased to 10, as did Game mode, which was essentially equal to Bright mode through this input. Other modes displayed no noticeable changes in color reproduction.
As mini projectors can often have problems with brightness uniformity across the screen, we checked the QUMI across a 60” diagonal image. The QUMI did quite well overall. The right side of the image was slightly brighter than the center and the drop off was minimal until you got to the extreme left edge of the displayed image, where it was about 20%.