Customization: | Available |
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After-sales Service: | Good |
Warranty: | 1 Year |
Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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Model | B20 | B30A | B40A | |
Telescope | ||||
Tube length | 215mm | 214mm | ||
Magnification factor | 32X | 28X | 24X | |
Objective aperture | 42mm | 36mm | 32mm | |
resolving power | 3″ | 3.5″ | 4″ | |
Field of view angle (100m away) | 1°20′(2.3m) | 1°25′(2.5m) | ||
Shortest line of sight | The front end of the telescope is 0.2m, and the instrument center is 0.3m | |||
imaging | Erect | |||
Visual range plus constant | 0 | |||
Line of sight multiplication constant | 100 | |||
Focus knob | Dual speed | Single speed | ||
Focus knob | Hole type | Gun style | ||
Accuracy (standard deviation per km of round-trip test) | ||||
Without micrometer | 0.7mm | 1.5mm | 2.0mm | |
Equipped with a micrometer | 0.5mm | - | ||
Compensator | ||||
Type | Magnetic-damping pendulum-type compensator | |||
Accuracy | 0.3″ | 0.5″ | ||
Compensation scope | ±15′ | |||
Circular bubble | ||||
Sensitiveness | 10′/2mm | |||
Horizontal circle | ||||
Diameter | 103mm | 99mm | ||
Minimum division | 1° | |||
Else | ||||
Waterproof grade | IPX6(IEC60529:2001) | |||
Working temperature | -20ºC~+50ºC | |||
Dimension |
Width | 130mm | 122mm | |
Length | 215mm | 214mm | ||
Height | 140mm | |||
Weight | 1.85kg | 1.5kg |