I have used the milspec/issue Tritium H3 clam since 1979. 4 stars for accuracy and occasional pivot point/card slip, but for the $, it's great. Lasts about 10-12 years, then donated to scouts. Also used the Pyser M-73 (degrees) Black Liquid Prismatic Compass and MILS a lot in locations not friendly to U.S. It too is 5 stars. A great compass. Beware of Amazon and eBay knockoffs. If it's a life support kit, DO NOT skimp. Full review
Very well built, impressive compass, at least until the lens fell out. I bought two of these compasses over the years. The first one I lost on a hunting trip, and when I went back to look for it, well, the olive drab paint is difficult to spot in the grass. Take that as a plus or minus, depending on your perspective. The second one I bought I used for all types of activities. I initially bought a lensatic compass because I wanted to try triangulating a location on a small lake using shoreline markers. Full review
Durable and accurate. I bought one of these as a replacement for an old Silva compass. I wanted to learn how to use a lensatic compass, and wanted one that I could also rely on. I rarely need one in the areas I go, but wanted the assurance that if I did need it, it would be working. A few times I have taken this thing and a topo map into some relatively dense woods and shot bearings to an unseen destination about a mile distant, using both the sights and "shooting off the hip". I was nothing but… Full review
Well-made, but less than ideal for non-military users. The U.S. M1950 dry lensatic compass currently made by Cammenga gets a lot of good press for being tough, but it's only 'tougher' than most liquid-filled baseplate compasses in that it can't ever develop an air bubble in the housing, since it doesn't use liquid to dampen the dial. It's true that this compass has a super-strong case and housing, but it also has an extended-length pivot that can bend with a significant shock such as a drop… Full review
Well-made, but less than ideal for non-military users. The U.S. M-1950 dry lensatic compass currently made by Cammenga in the 3H configuration is lauded as being the toughest, most accurate compass on the market. After all, the U.S. military uses it, so it must be the best, right? Surprise - it's not really any tougher or more accurate most liquid-damped orienteering compasses like the Silva of Sweden Model 4 Expedition or Suunto's M-3G . Even in 1950, this compass was outclassed by the British… Full review
Cammenga was founded in 1992 as the official supplier of the Tritium Lensatic Compass to the U.S. Military. It is the world's largest manufacturer of military compasses.