R/L Key; Illumination Key - Pentax ETH-302 Instruction Manual

2.3.5 [R/L] key
Press the [R/L] key to change from clockwise to counterclockwise
rotation. A clockwise or counterclockwise reading is alternately
displayed each time the key is pressed.
Clockwise horizontal angle
1
Counterclockwise horizontal angle Count horizontal angle in a left
2
If the power turns off during the counterclockwise mode, the display
returns to a clockwise horizontal angle display when power is turned on.

2.3.6 [Illumination key

Pressing the
The illumination is automatically turned off after five minutes.
Pressing the key, with illumination on, turns off the illumination.
20
]
key, illuminates the LCD panel and telescope reticule.
Count horizontal angle in a right
rotation direction (HR)
rotation direction (HL)