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Tribrach Adjustment Ring

$44.99

SECO OP TRIBRACH ADJUSTMENT RING

Precision Machined Aluminum Ring / Anodized
These precsion rings allow quick and precise calibration of Optical Plumett Tribrachs.
Just place 1 tribrach on a tripod ( Indoors ) , place the ring in the Tribrach..then
position the OP Trbrach to be calibrated on the ring upside down. By turning the top
Tribrch on the ring and looking at a spot on the ceiling, calibration is accomplished
in just a couple of minutes.


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