Plus you have to do all the declination calculation and carry s separate protractor when doing any serious navigation. I just never found the military compass worth the price or the weight carried. The Suunto MC-2 Global model will work anywhere in the world because of the way the needle is mounted, the Cammenga requires a special model for certain regions of the world, which has to be special ordered. The actual military model Cammenga has tritium in it to make it glow, which is nice but has a half life that means after about 10-12 years it no longer glows much. The mil-spec lensatic is friction dampened and has not liquid. The Suunto is liquid filled and after a long period could develop a bubble in the capsule, that could effect accuracy it the bubble is large enough. For use with artillery and mortars the military uses a compass called the M2 which is a very accurate, heavy compass that costs several hundred dollars. The accuracy has tested better than the military compass, the lensatic compasses when tested side by side will often have a few degrees of variation. The advantages of the baseplate/sighting compass like the MC-2 is you can use the compass as a protractor with the map and as a sighting compass using the mirrored cover. I used a military compass for many years in the military but most of the guys in my unit bought Silva Rangers (when they were genuine Silva) or Suunto compasses. ![]() The cammenga military compass is fairly large and bulky compared to the Suunto MC-2.
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