Keystone And Focus - YABER Y61 Mode D'emploi

Keystone and Focus

If the projected image is in a trapezoidal shape, it can be resolved by
Keystone correction. ( Do Manual Keystone Correction )
Note: If the Keystone correction fail to resolve image shape, please
reduce the vertical height of the projector in relation to the center of the
screen.
The projected image may be blurry or difficult to see, this is due to lack of
Focus adjustment with the lens, please follow the processes below to
adjust the Focus. ( Do Manual Focus, find the most sharpness picture on
the screen )
Note: It is normal when sharpness in the central, blur in the edge.
Manual Focus
Keystone Correction
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