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3 Basic operation
3.1 How to use the control lever
The control lever is used to move the optical component of the retinal camera lengthwise or crosswise, and
upward/downward. When roughly divided, there are three ways to use it:
• Coarse motion: moves the optical component lengthwise or crosswise broadly.
• Fine motion: moves the optical component lengthwise or crosswise nely.
• Upward/downward motion: moves the optical component upward/downward.
For coarse motion control
1
Grab the control lever completely in a hand.
2
While holding the control lever in upright position, move it lengthwise
or crosswise so that the entire panel will move.
For ne motion control
1
Hold the control lever with your nger tips.
2
Tilt the control lever lengthwise or crosswise.
The optical component is moved to the direction where the control le-
ver is tilted.
For upward/downward motion control
1
Hold the control lever with your nger tips.
2
Rotate the control lever, the optical component is moved upward/
downward.
Rotate clockwise: the optical component is moved upward.
Rotate counterclockwise: the optical component is moved downward.
Upward
Downward