Pentax ETH-310 - Manual (Page 25)

3.2 Setting of 90°buzzer
90°buzzer setting display by special key operation
No 90°buzzer
Setting is switched by pressing [0SET] key
With 90°buzzer
Store with [V/%] key when the setting decided.
3.3 Setting of correction of vertical angle
Correction of vertical angle setting display by special key operation
Setting is switched by pressing [0SET] key
Store with [V/%] key when the setting decided.
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