Model
NL20
NL22
NL24
NL26
NL28
NL30
NL32

Standard deviation(1km)
2.5mm
2.0mm
2.0mm
1.5mm
1.5mm
1.5mm
1.0mm

Image
Erect
Erect
Erect
Erect
Erect
Erect
Erect

Magnification
20x
22x
24x
26x
28x
30x
32x

Ob jective aperture
34mm
35mm
34mm
38mm
38mm
38mm
38mm

Field of view
1o20'
1o20'
1o20'
1o20'
1o20'
1o20'
1o20'

Minimun focus
0.5m
0.5m
0.5m
0.5m
0.5m
0.5m
0.5m

Multiplication constant
100
100
100
100
100
100
100

Additive constant
0
Compensator range
±15'
±15'
±15'
±15'
±15'
±15'
±15'

Compensator accuracy
±0.6''
±0.6''
±0.6''
±0.6''
±0.6''
±0.6''
±0.6''

Sen sitivity of bubble
8'/2mm
8'/2mm
8'/2mm
8'/2mm
8'/2mm
8'/2mm
8'/2mm

Horizon.circ le reading
1°or 1gon
1°or 1gon
1°or 1gon
1°or 1gon
1°or 1gon
1°or 1gon
1°or 1gon