Product Specification
|
Parameter Model |
AK-20 DS 20 |
Ak-24 DS 28 |
Ak-28 DS 28 |
|
Standard Deviation for 1 km Double-run Levelling |
2.5mm |
2.0mm |
1.5mm |
|
Telescope Image |
Erect |
Erect |
Erect |
|
Magnification |
20x |
24x |
28x |
|
Clear Objective Aperture |
30mm |
36mm |
36mm |
|
Field of View |
1o20' |
1o20' |
1o20' |
|
Shortest Focusing Distance |
0.6m |
0.6m |
0.6m |
|
Stadia Multiplying Constant |
100 |
100 |
100 |
|
Stadia Additive Constant |
0 |
0 |
0 |
|
Sensitivity of Circular Level |
8'/2mm |
8'/2mm |
8'/2mm |
|
Graduation Interval of Circle |
1oor 1gon* |
1oor 1gon* |
1oor 1gon* |
|
Compensator Type |
X-shaped wire suspension air-damping |
X-shaped wire suspension air-damping |
X-shaped wire suspension air-damping |
|
Working Range |
+-15' |
+-15' |
+-15' |
|
Setting Accuracy |
0.5†|
0.5†|
0.5†|
|
Dimensions |
190x130x136mm |
190x130x136mm |
190x130x136mm |
|
Weight |
1.8kg |
1.8kg |
1.8kg |
|
Connecting Size To Tripod |
M16 or 5/8†|
M16 or 5/8†|
M16 or 5/8†|
