GAL20 | GAL24 | GAL28 | GAL32 | |||
Standard Deviation for 1km | 2.0mm | 2.0mm | 1.5mm | 1.0mm | ||
Double-run Leveling | ||||||
Image | Erect | Erect | Erect | Erect | ||
Magnification | 20X | 24X | 28X | 32X | ||
Objective Aperture | 40mm | 40mm | 40mm | 40mm | ||
Field of View | 1°20’ | 1°20’ | 1°20’ | 1°20’ | ||
Minimum Focus | 0.65m | 0.65m | 0.65m | 0.65m | ||
Multiplication Constant | 100 | 100 | 100 | 100 | ||
Additive Constant | 0 | 0 | 0 | 0 | ||
Compensating Range | +/-15' | +/-15' | +/-15' | +/-15' | ||
Setting Accuracy | +/-0.5" | +/-0.5" | +/-0.4" | +/-0.3" | ||
Sensitivity of Bubble | 8'/2mm | 8'/2mm | 8'/2mm | 8'/2mm | ||
Circle Reading | 1°/1gon | 1°/1gon | 1°/1gon | 1°/1gon |