Optoma ZH520 User Manual page 18

SETUP AND INSTALLATION
Zoom and focus
‡ To adjust the image size, turn the zoom lever clockwise or counterclockwise to increase or decrease
the projected image size.
‡ To adjust the focus, turn the focus ring clockwise or counterclockwise until the image is sharp and
legible.
1080p 1.3x model:
Short Throw model:
18 English
Focus Ring
Zoom Lever
Focus Ring