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Compass RECTA DP
The magnetic pole is almost the geographic point of the earth, but it changes a little every year. In the dry compass, the needle does not stabilize very quickly. In the oil compass, the needle stabilizes more quickly and there is also the 'turbo' system which allows the use of the compass in other than a horizontal position. The walk compass gives the north and also the walking direction. Another compass serves to work on the map and to visualize the direction for prism reading. The geodesical compass is very accurate. We have compasses to measure the angle along the coast and that can be incorporated into a binocular. The compass used in a magnetic outside environment can be compensated with small inside magnets. A good compass can be adjusted to the changing magnetic pole.
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