Specifications - Pentax ETH-302 Instruction Manual

8. Specifications

Telescope
Magnification
Effective aperture
Resolving power
Field of view
Minimum focus distance
Stadia ratio
Stadia constant
Angle Measurement
Type
Detection mode
Minimum Display (Selectable)
ETH-302 1"/5"
ETH-305 1"/5"
ETH-310 5"/10"
ETH-320 10"/20"
Accuracy (DIN18723, Standard deviation)
ETH-302 2"
ETH-305 5"
ETH-310 10"
ETH-320 20"
Vertical Angle Compensation
Method
Stadia Ratio
Stadia Constant
Display
Type
Display panel
30 X
45 mm
3"
1° 30'
1.35 m
100
0
Incremental rotary encoder
V. angle: Single
H. angle: Dual
Automatic compensation
100
0
Dot matrix LCD/Two lines
Dual display
45