Modern design to improve stability, Pre Loaded levelling screw tension that does not need adjustment. Levelling screws bushings are bonded into upper body and can not come loose. Fixed adjustment on plate that holds levelling screws base plate. Aviation quality materials and thread fixers used on all threads and screws. Tested in collimator stand to confirm torsional rigidity. Torsional rigidity: rated <3 arc second.
Made By GeoDesy
Made in EU
Rated the best after market Tribrach available.
Technical data
- Tripod mount: 5/8″
- Spirit level: 6′
- Adjusting range of levelling screws: 10 mm
- Accuracy (hysteresis): < 6cc
- Even higher torsional
- More precise centring of the instrument through spring-loaded clasp (for optimum repeatability)
- High vertical load (12 kg)
- Central tightening nut for the spring plate
- Dirt-and water-proof bolts, double ball bearings
Optical plummet
- Magnification: 2x
- Image: erect
- Shortest focal distance: 0.35 mm
- Accuracy: 0.5 mm / 1.5 m
- Operating temperature: from -20 °C to +50°C
