Optoma ZU820TST User Manual page 44

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USING THE PROJECTOR
Blackboard
Best for projecting on to a blackboard.
DICOM SIM.
Best for projecting monochrome medical images, such as X-ray diagram.
1.8 / 2.0 / 2.4 / 2.6
For specific PC / Photo source.
Note:
When Blending mode is selected, only gamma Standard2.2 is supported.
Dynamic Contrast
Set up the Dynamic Contrast to maximize the contrast for dark content.
Dynamic Black: Enable this function to automatically adjust the contrast ratio for video sources. It
improves the black level in dark scenes by reducing the light output.
Speed: Adjust the speed of the light source correction. The value ranges from 1 to 15. A lower value
makes the correction slower and less aggressive while a higher value results in the faster correction.
Strength: Set the strength of the dynamic contrast adjustment. The value ranges from 0 to 3, the
higher the value the stronger the correction.
Level: Adjust the light source when the brightness level of the current content gets lower than the set
value. The value ranges from 50% to 100%. The higher the value, the larger the range to adjust the
light source.
Extreme Black: Enable this function to automatically increase the contrast ratio by turning off the
laser light when black image is detected.
AV Mute Timer: Set a timer for the laser light to turn off after detecting black content. The set value
ranges from 0s to 10s.
Black Signal Level: Set a black level value as the threshold for the Real Black function. The value
can be adjusted from 0% to 5%, with 0 being the darkest black and 5 being the brightest.
Note:
When Dynamic Black is turned on, the Extreme Black will be unavailable.
When Dynamic Black is turned off, the Speed, Strength, and Level will be unavailable.
When Extreme Black is turned on, the Dynamic Black, Speed, Strength, and Level will be
unavailable.
Color Settings
Configure the color settings of the projected image to improve the color performance.
Color
Adjust the saturation of the selected color. The value indicates the color shifts from or towards the white in the
center of the chromaticity diagram.
Tint
Adjust the color balance of red and green in video images.
Color Temperature
Adjust the color temperature of the projected image. The available options are Warm, Standard, or Cool.
Color Wheel Speed
Set the projector color wheel speed to 2X or 3X.
White Balance
Adjust the white balance of the projected image via gain and offset. Gain and offset are individual controls for
each RGB channels used to set greyscale. The Gains calibrate the color of the dark parts and Bias calibrate
the white parts.
44
English

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