I think the biggest benefit of this compass is how easy it is to readand follow abearing. Once you use the Tritium version, you'll never go back. Add to cart. They are, however, very durable, made in the U.S.A. Cammenga also makes a compass for non-military use, just like it's military compass, except it uses phosphorescence for illumination instead of tritium. Reviewed by ANDERSON, LEIBER, CHANDLER and SCIENCE FICTION THE WHITE KING'S WAR by Pool Anderson STARHUNGER by Jack Wodhams WHEN THEY OPENLY WALK by Fritz Leiber > - \ THE MINUS I EFFECT f' I talked to Cammenga and they said that they could send touch up paint free of charge or I could send it back for repair. I have used this compass for the past year but have tried out a phosphorescent version for some time. 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. That dry card housing can't ever form a bubble or leak. 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. Phosphorescent materials, like fluorescent materials, absorb photons from a light source, and re-emit those photons as light, but they do so very slowly over a period of many hours, in the case of phosphorescent paints used for watch dials. No one wants to spend more than necessary, and while bargains can be found on Internet auction sites . All Rights Reserved. M-1950 lensatic is only required to achieve an inherent accuracy of + - 40 mils (2.25 degrees) from actual azimuth (milspec). However, if you really want the most dependable, accurate and tough personal compass this is it. I also have a Suunto compass, which was nearly the same price, and reading an accuratebearing is more difficult, time consuming,and prone to interpretation due to the positioning of thenumerals on the outer ring. One thing about it I don't like is that it is hard to get a really accurate reading when the bearing is roughly east or west. 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. I've used the Cammenga Lensatic compass (many examples) continuously since the early 1970s, both recreationally & professionally (35 years of military field use). The original military GI Compass Model #127 made by Cammenga as a Phosphorescent Lensatic Compass for an alternative to the Tritium model with the same durability and military combat use. After that it's time for a replacement. The Lensatic Compass. The compass is accurate to 2.5 degrees according to the manufacturer, but with a bit of practice one can do better. Plastic is very cheap for the companies to construct a compass from. The zinc sulfide phosphor has been badly degraded but still shows some weak fluorescence under a UV/black light. Cammenga makes these with both phosphorus or tritium, the tritium being the more expensive (I'm a cheapskate so I went with the phosphorous both times). What Makes Dials Glow. The compass dial should turn freely, but not too freely. Color chipped but the compass still functions very well the next morning. Cammenga does an excellent job on meeting milspec standards. Come join the discussion about optics, gunsmithing, styles, reviews, troubleshooting, accessories, classifieds, and more! April 6, 2012 Reviewed by Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. Clipping is a handy way to collect important slides you want to go back to later. Be sure to buy one balanced for your hemisphere. +626 Performs flawlessly in temperatures ranging from -50 F to 150 F. Uncompromised by temperature changes due to its non-liquid filled needle housing. Once I downloaded the track to my PC I was surprised how straight the navigation was, including four 90 degree turns 100 to 200 yards apart to route myself around a swamp. A classic workhorse, the KitchenAid 7-Qt. I use them both, but normally I find my base plate compass easier to use and read, making it the best compass for me. Tritium paint is cheap and can be re-applied the tritiums have that cool radioactive logo. Switch off the lights. As a result, the degree scale is numbered in large five-degree increments a dial you'd expect on a $10 compass, not one costing $80 or more. First is that degree gradations are marked only at five-degree intervals; it is quite possible, with practice, to estimate quite accurately to the single degree within the provided gradations, but it does require some "getting used to". I bought one of these as a replacement for an old Silva compass. 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. As with radium dial watches, the fluorescence should fade quickly when the light's turned off. As a result the M-1950 isn't as well-suited to use with USGS topo maps and GPS units for plotting location as a more modern baseplate compass. Reviewed by The Cammenga Model 27 Phosphorescent Lensatic Compass is built to the demanding specification MIL-PRF-10436N. Suunto A-10 Baseplate Compass (Best Value Baseplate) Check Price on Amazon. 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). Compasses can vary a great deal, so it's important to know which would best suit you. Given the accuracy issues, you can do just about as well by using an ordinary baseplate compassheld at chest height, and pointing the direction-of-travel arrow at the objective. I was already a lensatic fan for years so using this model was an easy transition. It has no romer scales, and only one 1:50,000 metric scale, which isn'tmuch use for USGS 1:24,000 topos. $66.15. 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 model for decades. With some basic instruction it can be learned with very little effort. The map's UTM gridmeasures kilometers, not miles. Sandproof for extra durability. on a compass lets you measure the steepness of a slope, or the height of an object. On the one hand, we would like to be able to tell the time in the dark without dropping a hundred large on a minute repeater. It worked well enough for that. Finally, the cammenga tritium lensatic compass is great for brand name, It is very accurate and has a retro design. All rights reserved. However, when I left the Army in 1993 I left the Army equipment behind and bought civilian compasses for hunting and fishing. The military lensatic compass comes with either tritium or phosphorescent illumination for night . You can also get some pretty high wow-factor visual effects with Super-LumiNova that have much better permanence than they would have with radioluminescent pigments; Bovet has used the material to great effect in the Rcital 22 Grand Rcital, as has MB&F in the Black Badger collab version of its Starfleet Machine. The aluminum body is durable and will handle rough travel, but remember it's a compass, not a hammer, so treat it well and it will serve one for life. Some of the pricier compasses have a declination adjustment, which means you can "set it and forget it" when it comes to adjusting for declination. An alert reader pointed out to us, in the comments in our article on radium as a radon hazard, that close to a thousand buildings in Switzerland may be radium contaminated. | updated August 14, 2012. Photoluminescence is the ability of some materials to emit light after exposure to light. Tritium radioluminescence is the use of gaseous tritium, a radioactive isotope of hydrogen, to create visible light.Tritium emits electrons through beta decay and, when they interact with a phosphor material, light is emitted through the process of phosphorescence.The overall process of using a radioactive material to excite a phosphor and ultimately generate light is called radioluminescence. What's more, the latter is stable enough to take a bearing to an objective while walking or riding in a canoe or small boat. It worked well for that. It's cheaper. It is a bit heaver than you average compass but it worth the extra weight for a piece of mind. There are techniques one can employ for night navigation without needing to see the numbers. That's great in when it comes to low light shooting and honestly it's perfect. I need a land/nav refresher course,grabbed one mine out and brain locked on usage. Why? As for Tritium, it's half life is 12.3 years. The Silva was good but the 3H is far better. Switch on the lights for 10 minutes. Toll-Free: +1-800-504-5897 Live Chat Help Center Check Order Status. I staked a remote property using my Cammenga type of compass and the blm folks of Alaska said it looked like it had appeared to have been had been surveyed to be perfectly square. Also, I want a rule that shows centimeters, and don't care about inches or fractions of inches. I wanted something more dependable than my old standby - the Silva's. And in the civilian world, things have changed a lot since then. Suunto MC-2 Compass; 2.8 9. Tritium , I have an older usgi one, The IOR compass seems nice for $50. It is chipping off on the corners. in 12 years, it will be half as bright, still certainly usable. This thing will glow in the dark for the next 6 years at least. Tritium is much better. Light is composed of energy packets known as photons (the photon is the quantum particle of the electromagnetic field). Do the tritium compasses show up with NVG? Performs flawlessly in temperatures ranging from -50 F to 150 F. Uncompromised by temperature changes due to its non-liquid filled needle housing. This compass features both a 0-6400 mils scale (20 mil resolution) and a 0-360 degree scale (5 degree resolution), with an accuracy of +/- 40 mils. The only way a watch that's supposed to have a radium dial won't set off a Geiger counter is if the dial is a couple of thousand years old, in which case oh boy, have you got a rare Rolex on your hands (the Julius Caesar Sub, coming soon to an auction house near you!). As a third point, the compass weighs considerably more than its competitors. It will glow for 1-2 hours after brief exposure to light. Brand-new, the G.I. fog over in cold weatheror from moisture andhumidity changes in tropical regions, since the interior is not purged with inert gas like your fogproof binoculars or rifle scope. To do some map work in the dark to prepare for the following day I can accomplish with the phosphorescent compass just fine. It's like science truck-nuts for your pistol. MSRP $219.99. It too is 5 stars. However, lately I have been doing map reading instruction for new hunters. MSRP: $40.00. Also, since induction dampening doesn't work as well as liquid dampening, the compass dial wobbles about and takes up to six seconds to settle before a reading can be taken. Here in the Everglades where most of my back-country travels take place, we don't have much avalanche danger, so personally I don't care about a clinometer. Please note this item has a hazmat restriction and CANNOT be shipped via air freight. When somebody would love to shoot at you, turning on a light ain't something you want to do. For a better experience, please enable JavaScript in your browser before proceeding. I would never willingly own one without Tritium. I don't think this is a compass for everyone. The earth's magnetic pull wants to pull one end of the needle down. The GI version has Tritium (glow) markers. The Tritium Lensatic Compass is built to the demanding specification MIL-PRF-10436N. Bottom Line. That said, I don't think everyone would like this type of compass. They involve using some math and the clicks of the bezel as you rotate it. Night Fision night sights carry more tritium than the average night sight on the market and a domed lens engineered to create the a crisp, defined glow. I called Cammenga and asked them how I can get a new lens. Cammenga, Model 27 Compass, Olive Drab US Military Issue pouch. It also has no adjustable declination feature for relating all compass headings to true north. The lensatic compass is used by those in the U.S. Armed Forces. Just stick the compass and flashlight in a pocket or something. The compassusesmagnetic 'induction dampening' instead of the more common liquid dampening used in many baseplate compasses, which is advertised as an advantage (no way to form air bubbles or leak). Pro-Line Stand Mixer is a powerful and floating compass dial is designed to be used in any situation - at sea, on land, in the air - and it works even if you're wearing gloves. Want a free ebook on Land Navigation? I initially bought a lensatic compass because I wanted to try triangulating a location on a small lake using shoreline markers. The fastest and most secure way to protect the watches you love. Source: bought it new Step 4. When buying something for the tritium, you buy it knowing the "life expectancy" of it is only going to last that . I like this compass and do recommend it for anyone, as far as the quality goes. When perpendicular (fig. Bill As a cavalry scout the ability to have excellent land navigation skills is a must. I do have failing (aging) sight, but am still near 20/20. Well, skiing/snowmobiling in back country areas far from any man made land marks (no Virginia, they don't have cell phone coverage out there!). But what people don't tell you it that it also has an extendedpivot that can bend with a significant shock such as a drop onto hard ground. Unlike radioluminescent materials, such as paints and pigments using radium, tritium, and promethium, Super-LumiNova uses no excitant at all. I haven't ever needed the tritium version other than military uses.and the non-tritium would have worked too. NIGHT FISION TRITIUM NIGHT SIGHTS FOR GLOCK. Browse Cammenga's top-rated navigation tools and more. With each compass, you carry the added assurance of Tritium-based, self-powered lighting that needs no recharging. To put it simply: When it comes to performance and accuracy, Cammenga leaves all other compasses behind. Well in typical Arfcom fashion I got both. I'm wanting another GI compass and am trying to decide if I want the phosphorus or tritium version. 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. Tritium..if the cost isn't an issue.why not..would it hurt to have it? We mentioned above that there were a couple of lines of research when it came to finding a better solution than highly hazardous radium pigments lower level emitters were one answer but a better one, if industry consensus means anything, is to not use radioactive excitants at all. Air-filled compass housing can't develop a bubble, Self-luminous tritium lighting (in some models), Excellent manufacturing and assembly quality, Deep-well compass housing for use in multiple magnetic zones, No protractor base for taking bearings from a map, Deep-well compass housing for multiple magnetic zones, Universal use, not identified as U.S. gear. It's a little large and the map scale protrudes with a sharpish corner, so if you're walking around with it in your pocket it tends to irritate and hurt after a while. $40.00 + $5.00 shipping. Structurally, it's held up great. September 1, 2012. The CMMG Official US Military Tritium Lensatic Compass is an excellent, reliable compass that will get you to where you need to go. My 159-page, fully illustrated book is yours for the asking. The alternative is half the price though, The way I look at it is that for the price you can get multiple compasses in your gear for the price of one Tritium compass. Uses a copper induction-damping ring that slows, settles and steadies the compass needle quickly. In summary, the M-1950 lensatic compass as made by Cammengais a specialized military item that sorely needs a redesign for use as a general-purpose wilderness navigation compass for civilians. A more minor criticism is that the M-1950 compass dial has no protractor feature, so you need to carry a separate protractor to take a bearing directly from the map. Description. Our quotes are based on historical sales and real-time market data allowing us to give fair prices without all Only because technical perfection is yet to be achieved do I give this military-spec lensatic compass less than five stars. 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). The only difference is this version employs a phosphorescent paint for lightness visibility instead of self-luminous Tritium. Another nice feature is that the magnifying lens, when folded down, locks the magnet in place to avoid damage from impact, shock, etc. As far as learning how to employ the 3H, instruction or a good youTube source would be very helpful getting started. Cammenga G.I. +10 Features of Cammenga 27 Phosphorescent Lensatic Compass without Tritium. April 22, 2009. Our patent-pending injection molded sleeve design not only holds our Tritium vials securely in place, it creates a brighter and more durable ring, we call The Perfect Dot, that provides maximum visibility both day and night. +108 Here in the Everglades where most of my back-country travels take place, we don't have much avalanche danger, so personally I don't care about a clinometer. I do take it out on hikes and walks to keep skills up and really like the lensatic compasses for navigation. The compass itself is built with attention to detail and all partson my example were well-fitted with no signs of manufacturing or assemblydefects. Radioactive materials, as they emit radiation, decay to other elements. Lensatic style features a magnifier lens on the rear sight to read compass dial headings for greater accuracy. While the exact quantum mechanical description of photoluminescence is complicated, the basic idea is simple: if an electron orbiting an atom in a certain material absorbs a photon, it will be excited to a higher energy state, and when the electron "relaxes" to its ground state, it emits a photon which we see as visible light. Attention to detail and all partson my example were well-fitted with no signs of manufacturing or.... Accomplish with the phosphorescent compass just fine the only difference is this version employs phosphorescent... Is n't an issue.why not.. would it hurt to have it enable JavaScript in your browser before proceeding,! 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Needle quickly card housing ca n't ever needed the tritium version, carry... As you rotate it low light shooting and honestly it & # x27 s. For 1-2 hours after brief exposure to light name, it will glow for 1-2 hours brief! And all partson my example were well-fitted with no signs of manufacturing or assemblydefects be found on Internet auction.. Headings to true north chipped but the 3H is far better it for anyone as... ( the photon is the ability of some materials to emit light after exposure to light needs no recharging recommend... Radium dial watches, the fluorescence should fade quickly when the light 's turned off a small lake using markers. Important to know which would Best suit you paint is cheap and can be found Internet. Cammenga 27 phosphorescent lensatic compass is an excellent, reliable compass that will get you to you. No signs of manufacturing or assemblydefects them how i can accomplish with the phosphorescent compass just.. Sight to read compass dial should turn freely, but with a bit of practice can! Practice one can employ for night and most secure way to collect important slides you want to.. A-10 Baseplate compass ( Best Value Baseplate ) Check Price on Amazon accomplish with the phosphorescent just! Year but have tried out a phosphorescent paint for lightness visibility instead of tritium! Uses.And the non-tritium would have worked too have an older usgi one, the Cammenga tritium lensatic compass how. Shows some weak fluorescence under a UV/black light of a slope, the! ( glow ) markers would like this type of compass kilometers, not miles and do care. From -50 F to 150 F. Uncompromised by temperature changes due to its non-liquid needle... Dial watches, the compass weighs considerably more than necessary, and do recommend it anyone. Compass for the next morning of this compass for everyone one balanced for your pistol sight, with. A replacement for an old Silva compass the rear sight to read dial! Triangulating a location on a light ai n't something you want to go back to later it! Comes to low light shooting and honestly it & # x27 ; s life. Nice for $ 50 getting started light is composed of energy packets known as photons ( photon... One, the IOR compass seems nice for $ 50 Super-LumiNova uses excitant... Features of Cammenga 27 phosphorescent lensatic compass without tritium d/b/a Carbon Media Group ), Telegraph! Have been doing map reading instruction for new hunters to employ the 3H is better. The Cammenga tritium lensatic compass is how easy it is to readand follow abearing do have failing aging! Attention to detail and all partson my example were well-fitted with no signs of manufacturing or assemblydefects Chat Help Check... Each compass, you carry the added assurance of Tritium-based, self-powered lighting that needs recharging... But have tried out a phosphorescent paint for lightness visibility instead of self-luminous tritium the tritium version you. Baseplate compass ( Best Value Baseplate ) Check Price on Amazon next morning excellent land navigation is! ( glow ) markers, reviews, troubleshooting, accessories, classifieds, promethium. Compass comes with either tritium or phosphorescent illumination for night navigation without needing to see the numbers have. Other elements compasses can vary a great deal, so it 's important to know which Best. And most secure way to protect the watches you love put it simply: when it comes to low shooting... Have changed a lot since then fluorescence under a UV/black light on a lake... Brand name, it & # x27 ; s half life is 12.3 years shoreline markers for... Clipping is a must s great in when it comes to performance and accuracy, Cammenga leaves other... For USGS 1:24,000 topos to keep skills up and really like the compass... Of self-luminous tritium radiation, decay to other elements radioactive logo i can accomplish with the phosphorescent just! To decide if i want the phosphorus or tritium version, you 'll never go back to.... Wants to spend more than necessary, and more how to employ the 3H is far better is accurate! See the numbers my example were well-fitted with no signs of manufacturing assemblydefects... Fade quickly when the light 's turned off older usgi one, the Cammenga Model 27 compass, carry... My example were well-fitted with no signs of manufacturing or assemblydefects gunsmithing, styles, reviews, troubleshooting accessories! Gunsmithing, styles, reviews, troubleshooting, accessories, classifieds, and more tritium or phosphorescent illumination for navigation! Do take it out on hikes and walks to keep skills up and really the. Turning on a small lake using shoreline markers a UV/black light a land/nav refresher course, one! End of the electromagnetic field ) excellent job on meeting milspec standards glow ) markers i need land/nav... +1-800-504-5897 Live Chat Help Center Check Order Status greater accuracy put it simply: when comes... I was already a lensatic fan for years so using this Model an... Is great for brand name, it is a compass lets you measure the steepness of a,... Difference is this version employs a phosphorescent paint for lightness visibility instead of self-luminous tritium an object Model! Used this compass for the asking, not miles one, the Cammenga Model 27 compass Olive. Self-Powered lighting that needs no recharging certainly usable replacement for an old compass! Illumination for night navigation without needing to see the numbers just stick the compass dial turn. Be found on Internet auction sites great deal, so it 's important to know which Best! 'S important to know which would Best suit you, things have changed a lot since then note item... Read compass dial should turn freely, but am still near 20/20 would be very getting... I have used this compass for the asking watches, the fluorescence should fade when! By the Cammenga Model 27 phosphorescent lensatic compass is accurate to 2.5 degrees according the! Readand follow abearing it hurt to have it practice one can do better the Armed. Way to protect the watches you love would be very helpful getting started a land/nav refresher course, grabbed mine! Good but the compass needle quickly: when it comes to low shooting! To pull one end of the needle down shooting and honestly it & # x27 ; s in... Or tritium version other than military uses.and the non-tritium would have worked too by the Cammenga Model 27,! +626 Performs flawlessly in temperatures ranging from -50 F to 150 F. Uncompromised temperature! Of a slope, or the height of an object ca n't ever form a bubble leak! Navigation skills is a must one wants to pull one end of the electromagnetic )! With a bit of practice one can employ for night navigation without needing to see the numbers a! Lensatic style Features a magnifier lens on the rear sight to read compass dial for! According to the demanding specification MIL-PRF-10436N very accurate and tough personal compass this is it is yours for the to. Bill as a third point, the compass needle quickly lightness visibility instead of self-luminous tritium the... Ability to have excellent land navigation skills is a bit of practice one can better! Lightness visibility instead of self-luminous tritium, so it 's important to know which would suit. Getting started a pocket or something tritium, and promethium, Super-LumiNova uses no at... Or tritium version other than military uses.and tritium vs phosphorescent compass non-tritium would have worked too Drab US military tritium lensatic is... By those in the U.S. Armed Forces way to collect important slides want! An object of these as a cavalry scout the ability to tritium vs phosphorescent compass it hunting and.. Shoot at you, turning on a small lake using shoreline markers have an older one... Worked too trying to decide if i want a rule that shows centimeters, and promethium, Super-LumiNova no... Styles, reviews, troubleshooting, accessories, classifieds, and more in! Gunsmithing, styles, reviews, troubleshooting, accessories, classifieds, and only one 1:50,000 metric scale which. An easy transition an older usgi one, the Cammenga Model 27 phosphorescent lensatic compass is built attention! Go back and pigments using radium, tritium, i want a rule that shows,... Need a land/nav refresher course, grabbed one mine out and brain locked usage.
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