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About this item
Model | B40 | B30 | B20 |
Telescope | |||
Length | 215mm(8.46 inch) | ||
Objective aperture | 32mm | 36mm | 42mm |
Magnification | 24X | 28X | 32X |
Image | Erect | ||
Resolving power | 4' | 3.5' | 3.0' |
Field of view(at 100m) | 1° 25′ (2.5m) | 1° 20′ (2.3m) | |
Minimum focussing distance | 0.2m (7.9in.) from end of telescope | ||
0.3m (1ft.) from instrument cener. | |||
Reticle pattern | Cross hairs | wedge | |
Stadia ratio | 100 | ||
Stadia constant | 0 | ||
sighting aid | Gun sight | Peep sight | |
Focusing Knob | 1-speed | 2-speed | |
Lense hood | - | Retractable | |
Accuracy(standard deviation for 1km double run leveling) | |||
Without micrometer | 2.0mm | 1.5mm | 0.7mm |
(0.08in.) | (0.06in.) | (0.03in.) | |
With micrometer | 0.5mm | ||
(0.02in.) |
| SKU | V9-3FE8D9DF |
|---|---|
| Condition | new |
| Return window (days) | 7 |
JTF B40 24X 32Mm IPX6 Surveying Instrument Auto Level
Optional cover that starts when the manufacturer warranty ends.
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