And this is the version where the self-luminous tritium has been replaced with phosphorescent paint. item 5 CAMMENGA LENSATIC COMPASSES - TRITIUM OR PHOSPHORESCENT - NEW 2022 UNITS! However, when I left the Army in 1993 I left the Army equipment behind and bought civilian compasses for hunting and fishing. Despite the name, these transitions still happen, but they're statistically unlikely and so the trapped light leaks out much more slowly than in fluorescent materials. Beware of Amazon and eBay knockoffs. After all, the U.S. military uses it, so it must be the best, right? Battle tested through rigorous shock, water, sand proof, and functional from -50 F to +150 F. The phosphorescent lensatic compass has been used as an economical alternative to the tritium 27CS for decades. You probable wouldn't even need a ponch. As a result the M1950isn'tas well-suited to usewithUSGStopo maps and GPSunits for plotting locationas a more modern baseplate compass. Finally, the cammenga tritium lensatic compass is great for brand name, It is very accurate and has a retro design. The Lensatic Compass. Open the lensatic compass as shown in . Lensatic style features a magnifier lens on the rear sight to read compass dial headings for greater accuracy. Chopard demonstrates its love for mechanical beauty. Just a word of caution. April 6, 2012 Sale price: $37.50. [ARCHIVED THREAD] - Why Tritium over Phosphorescent compass. (For strontium aluminate to be an effective phosphor, it must be combined with europium, a non-toxic, non-radioactive chemical element). Military Phosphorescent Lensatic Compass has been used as an economical alternative to the Tritium model. The compass uses magnetic 'induction dampening' to settle the floating dial in 'six seconds or less'. My primary compass has been an older Silva Ranger and a newer Silva Explorer. Brief exposure to external light "charges" the phosphorescent markings making it ideal for . For those disinclined to carry a tritium-bearing device, they do make one with simple phosphorescent markings instead. Kjellstrom introduced the sport of orienteering to the USA in 1946. VIEW DIMENSIONS. Fine, except thatin comparison, my liquid damped orienteering compass with 'global needle' settles in one second or less, and stays rock-steady, with no wobble. But what most people don't know is that the original M-1938 U.S. Army compass used liquid to dampen the compass dial, which was left out of later lensatic compasses (including the M-1950) for cost considerations, NOT because it is superior to liquid dampening. Shockproof, damage-resistant design. The military lensatic compass comes with either tritium or phosphorescent illumination for night navigation. Description. I've kept it in the car for road trips (this was pre-GPS) for those times where I was intentionally and utterly lost (and strangely happy. Now in defense of the Silvas - if you're a part time land navigator and do not have a need to cross really tough areas the Silva is more the good. Cammenga does an excellentjob on meeting milspec standards. Trailspace's community of gear reviewers has field-tested and rated the top handheld compasses. Accuracy +/- 40 mils. This compass is built like a tank. Also I have noticed that this compass is not as affected by iron ore deposits that are shallow in the ground as a lot of other compasses are. Cammenga. They involve using some math and the clicks of the bezel as you rotate it. It also has no adjustable declination feature for relating all compass headings to true north. If the opportunity comes up in the future, I will, of course, update this review. Actinium is a radioactive metal that emits a pale blue light in a darkened room. They know not of what they speak. Tritium will continue to glow long after the phosphorescent ones fade. That's extremely helpful. tritium. +1 - I've got a 20-year-old Silva Ranger that I've never seen a need to replace. The compass itself is built with attention to detail and all partson my example were well-fitted with no signs of manufacturing or assemblydefects. This is a nice feature that extends needle life. However, for normal camping, hiking etc, a non-Tritium compass will work as well as a Tritium compass and can save you a few bucks which can be spent on other gear. Copyright 20092023, Hodinkee Inc. All Rights Reserved. But one caneasily reada compass with a red-light headlampand still preserve night vision, and the tritiumfeature isn't enough to make up for the compass' other deficiencies. See questions and answers Customer reviews. They have have been good solid compasses which is more than adequate for what I have been doing. One new winner* is announced every week! Deserted It is more accurate than a regular plate compass, it is light weight (about 2 oz. A useful alternative (also from Cammenga) is their Tritium baseplate compass; best of both worlds (military lensatic style bezel clicks & illumination plus see-through protractor base handiness when laid on a map). Come join the discussion about optics, gunsmithing, styles, reviews, troubleshooting, accessories, classifieds, and more! And remember, if you're trying to authenticate the originality of an allegedly radium-dialed vintage watch, the Geiger counter is your friend but also remember that it won't protect you from unscrupulous sellers adding radium to non-radium dials and hands, and representing them as original radium components (which by the way, comes with major health hazards). I've always been a major fan of this compass. And, finally, it has no mirror. JavaScript is disabled. Our quotes are based on historical sales and real-time market data allowing us to give fair prices without all The CAMMENGA MODEL 3H TRITIUM LENSATIC COMPASS is built to the demanding specification MIL-PRF-10436N. Get your own customized topographical maps, built according to your specifications. Strontium aluminate seems to be a highly stable phosphor, and Super-LumiNova dials, at least thus far, appear to not suffer from the gradual phosphor degradation characteristic of radioluminescent materials. It is extremely durable and accurate. I'm old enough to remember seeing radium dial watches in actual use (barely; I was very young, but anything that glows in the dark makes a great impression when you're four) and while I miss the brilliant radiance of radium dials and hands, it's probably just as well for all concerned that the industry got out of the business when it did. The lens is clear and the dial is not hard to read for me. Price Paid: $90, Reviewed by Not a beginners compass, but not hard to master either. It's true that this compasshas 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 onto hard ground, causing pivot friction that degrades accuracy. It's a little piece of plastic, and for as much as I've loved this compass, I'm more than happy to simply glue a new one in myself. Waterproof to considerable depths. I called Cammenga and asked them how I can get a new lens. For me, if I got even 10 years (of the 12.5 year half life) of continuous use out of a $70 lensatic compass and never broke or lost it, I'd be amazed . Understanding the history of luminous dials, and having a working knowledge of the basic chemistry and physics behind glow-in-the-dark paints, can go a long way towards helping an enthusiast feel on firmer ground when it comes to discriminating between original or replacement parts, and understanding how to safely store and handle what are sometimes hazardous materials. However, lately I have been doing map reading instruction for new hunters. Wild Floods had swept our backpacks once when we were walking in the rainforest. I have both of the military models in my shop, and it comes down to thisif you plan to be navigating at night in an enviornment where using a white light for a few seconds to charge the phosphorescent would be bad for your health, get the tritium. What's your take on the matter? Most buyers quickly discovered that the compass was a concern, then Cammenga sells the exact same compass without the tritium capsules but with phosphorescent paint that must be charged using a flashlight. Product Description. This phosphorescent compass is waterproof, shockproof, and sand proof. The Tritium won't, but this can be replaced by Cammenga every 13 years or so. As the U.S. Militarys official compass manufacturer, Cammengas Tritium Lensatic Compasses have proven themselves repeatedly in almost every kind of environment and situation. Click a link, buy what you need, and the seller will contribute a portion of the purchase price to support Trailspace's independent gear reviews. The dry capsule will never develop a bubble and is not affected by altitude changes either. Performs flawlessly in temperatures ranging from -50 F to 150 F. Uncompromised by temperature changes due to its non-liquid filled needle housing. crossbowme I'm not an actual user, but it sounds like you answered your own question in your post, you just want someone to back you up to justify buying it, which is fine. Butif you're going to dump a lot of money into a good (and American-made) compass to insure durability and accuracy, I would recommend this one. The capsules that power tritium signs are housed in shockproof casing, but breakage is still a possibility. :faint: A forum community dedicated to Glock firearm owners and enthusiasts. The Cammenga Lensatic Compass. 4.6 out of 5 stars. All rights reserved. In most cases, you'll get a personalized quote in seconds and your policy kicks in immediately. Proudly made with the highest quality in the U.S.A.. It is a bit heaver than you average compass but it worth the extra weight for a piece of mind. It is water and sand proof, and is functional from -50 F to . September 1, 2012. Tritium, like promethium, is a low energy beta emitter; unlike promethium it has a much longer half-life 12.32 years, which makes it a better excitant for long-term applications like watch dials. However, if the bezel is original it's basically just as radioactive as the day the watch was made an important caution for any collector who owns one. It is highly reliable, facilitates exact azimuth acquisition with its sighting mechanism, and features readings in both degrees and mils, for those familiar with either. Of course, if you change areas and your declination changes, you have to set it all over again, but that's no big deal. Perry Clark 1960s era black light poster. If a lot, the get the tritium. Tritium, I guess I'm the only one who gets lost at night. The interior is white. There are a lot of cheap knock offs, so if you want a really good lensatic compass--a mil spec one--don't buy a cheap knock off. And in the civilian world, things have changed a lot since then. These are colloquially known as "black lights," and black light posters were a dorm room staple in the '70s (and for all I know might still be). September 10, 2021 Strahwk I do take it out on hikes and walks to keep skills up and really like the lensatic compasses for navigation. Let's examine that. Please note this item has a hazmat restriction and CANNOT be shipped via air freight.

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