Topcon AT-B4 is a precise auto level with 24x magnification, 32mm objective aperture, and 4" resolving power. It features a 1°25' field of view at 100m and an erect image. Topcon AT-B4 has a stadia constant of 0 and a stadia ratio of 100. The focusing knob is 2-speed, and the sighting aid is a gun sight. The accuracy (1km double run leveling) without a micrometer is 2.0mm. The compensator is a 1-speed pendulum compensator with a magnetic damping system, setting accuracy of 0.3", and a working range of ±15'.
Topcon AT-B4 is a precise auto level with 24x magnification, 32mm objective aperture, and 4" resolving power. It features a 1°25' field of view at 100m and an erect image. Topcon AT-B4 has a stadia constant of 0 and a stadia ratio of 100. The focusing knob is 2-speed, and the sighting aid is a gun sight. The accuracy (1km double run leveling) without a micrometer is 2.0mm. The compensator is a 1-speed pendulum compensator with a magnetic damping system, setting accuracy of 0.3", and a working range of ±15'.
Topcon AT-B4 is a precise auto level with 24x magnification, 32mm objective aperture, and 4" resolving power. It features a 1°25' field of view at 100m and an erect image. Topcon AT-B4 has a stadia constant of 0 and a stadia ratio of 100. The focusing knob is 2-speed, and the sighting aid is a gun sight. The accuracy (1km double run leveling) without a micrometer is 2.0mm. The compensator is a 1-speed pendulum compensator with a magnetic damping system, setting accuracy of 0.3", and a working range of ±15'.
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