Huvitz HLM-1 - The Calibration of the Cylindrical Axis

Auto Lensmeter HLM-1
13
ANGLE
PRISM BASE
0
0° ~ 30° center
1
31° ~ 60° center
2
61° ~ 90° center
3
91° ~ 120° center
4
121° ~ 150° center
5
151° ~ 180° center
6
181° ~ 210° center
7
211° ~ 240° center
8
241° ~ 270° center
9
271° ~ 300° center
10
301° ~ 330° center
11
331° ~ 360° center
2.5. The calibration of the cylindrical axis
With the +5D rectangular cylindrical lens, we can calibrate the cylindrical axis of our
machine. The procedures are as followings:
A. Press the ‘CYL’ (Key 3) button.
B. Place the +5D rectangular cylindrical lens on the lens cap.