That dry card housing can't ever form a bubble or leak. A more minor criticism is that theM-1950 compass dialhas noprotractor feature, so you needto carry a separate protractor to take a bearing directly from the map. While not difficult for an experienced user, someone who is used to setting declination and forgetting it thereafter will have to be reminded occasionally to make the proper adjustment in sighting. Military Lensatic Compass. 1960s era black light poster. Strahwk If you call, and talk to Jay, tell him Reid and Land-Navigation.com sent you. But what option for the Glow in the Dark is better? I prefer the Tritium .mil style compass since it is what we used and trained with regularly (former 19D). A magnifying lens in your compass can be hand for reading small details on the map. 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However, if you really want the most dependable, accurate and tough personal compass this is it. 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. 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". Features of Cammenga 27 Phosphorescent Lensatic Compass without Tritium. Constructed with a powder-coated, aluminum frame for optimal endurance. Enter Luminova. Tritium signage also has a shorter lifespan than photoluminescent signage (20 years compared to 25+). A key point to bear in mind is this: the dial is still highly radioactive. Very well built, impressive compass, at least until the lens fell out. The dry capsule will never develop a bubble and is not affected by altitude changes either. Switch off the lights. Sale price: $37.50. Compass is approved for the Japanese Market. Cammenga 27CS Lensatic Compass. With the thumbhole holder it is easier to level. Bottom Line. But flatter for pocket carry, less than 2 oz, & $25 less . I would never willingly own one without Tritium. But why bother, when other compasses have easy-to-read dials that can be read to 1 degree or less with ease? The interior is white. Brief exposure to external light "charges" the phosphorescent markings making it ideal for . Ever. All the watches you need to know about, delivered to your inbox daily. Tritium is way to go. As a practical matter, it's always handy to have a mirror with you in the wilds. Yeah you read that right, vials of radioactive gas. This compass is identical to the Army model, except for phosphorescent markings instead of the self-luminous Tritium vials. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. April 4, 2010. But who's going to bother with that? Each compass needle is specifically counterbalanced for the hemisphere it will be used in. in 12 years, it will be half as bright, still certainly usable. At that point, dials and hands are usually replaced if nocturnal legibility is desired of course, do that to a vintage watch whose high value rests on originality of all parts, and you may have a watch you can read at night, but you will have destroyed its investment value. Equipped with 7 Tritium micro-lights, providing continuous illumination for over 12 years. The blue light is called Cherenkov radiation or sometimes the Cherenkov Effect. Low areas where you must constantly shoot accurate azimuths, etc. October 27, 2017. Source: bought it new For those who need night illumination, the tritium has an effective life of about 12 years, after which the compass is difficult to read in the dark. Price Paid: $90, Reviewed by Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. The luminous lighting on the standard model is excellent, once charged with a flashlight, but if you have a flashlight anyway, the luminous feature isn't really necessary. With the compass held to your eye you align a notch on the lens holder, wire, and target much like iron sights on a rifle. It is built to the demanding specification MIL-PRF-10436N. 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. I use my Silvas, don't know why, just prefer them. Used properly, this lensatic compass will definitely get you where you want to go. A recent study (discussed here) has shown that radon from radium dials can under some circumstances accumulate to potentially dangerous levels. 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. 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. One new winner* is announced every week! 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. After all, the U.S. military uses it, so it must be the best, right? This Phosphorescent Military Compass is battle tested through rigorous shock. It is much more than most people need. Performs flawlessly in temperatures ranging from -50 F to 150 F. Uncompromised by temperature changes due to its non-liquid filled needle housing. Then by looking through the lens you can read the bearing off the dial. I called Cammenga and asked them how I can get a new lens. Or you could use the mils scale and convert each and every azimuth (bearing) you takeback into degrees for the benefit of your companions (all of whom will havedegree scale compasses). Nuclear reactions may produce a glow. Each "click" is 3 degrees. Professional Multifunction Military Army Metal Sighting Compass; 2.7 8. El ciudadano reportero Johnny Bohorquez envi estas imgenes con el siguiente comentario: "En el barrio Las Gaviotas (entre las manzanas 29 y 28) se ha venido presentando un problema con las tuberas de aguas negras. Secondly, the ability to easily navigate in really difficult terrain is far better and more accurate. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. 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. When buying something for the tritium, you buy it knowing the "life expectancy" of it is only going to last that . A Week On The Wrist The $250K Urwerk Inspired By A Vintage Bugatti And Chicken Grills, Hands-On The Tudor Black Bay Burgundy, Now A Master Chronometer, Watches & Wonders 2023 All The News And New Releases From Watches & Wonders 2023, How To Wear It The Vacheron Constantin Patrimony, Buying, Selling, & Collecting Here's Why I Traded My Cartier Santos-Dumont For A Tank, Watches In The Wild The Road Through America, Episode 1 Of Our New Docuseries. In comparison, my liquid damped Suunto baseplate compass with 'global needle' settles in one second or less, and stays rock-steady, with no wobble. In the southern hemisphere, it pulls the south end down. 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. Uses a copper induction-damping ring that slows, settles and steadies the compass needle quickly. Cammenga, Model 27 Compass, Olive Drab US Military Issue pouch. I have used the milspec/issue Tritium H3 clam since 1979. They told me it would cost $60 to replace the lens. If you don't need all-night illumination, then this could be a good option. Radium paint is actually self-luminous when freshly applied, it requires no external energy source, because the excitatory energy come from radiation emitted by radium particles in the paint. Chopard demonstrates its love for mechanical beauty. Cammenga is very rugged and can stand all abuses we had during our lost. FTW!!! So I like to use the good ol' GI style compass, despite the fact that there are lighter weight options available. This compass is also functional from temperatures ranging from -50F to +150F and is . Oh shit I didn't know the phosphorus wore out too and faster. The earth's magnetic pull wants to pull one end of the needle down. First, off it was like coming home again. Close-up of the 3H closed. Note the official military 'shock' test an easy 'drop test' of 90 cm (3 feet) onto a table covered with a 10cm (4-inch) layer of plastic-covered sand. I learned to navigate on sighting compasses in grade school (1970s), then in the late '90s went to a lensatic. Additional Information. Slideshare uses cookies to improve functionality . . For a better experience, please enable JavaScript in your browser before proceeding. It has passed the test of battles to prove itself as the best survival compass. When buying a Cammenga, they offer you the option of Northern Hemisphere or Southern Hemisphere. Buy your best compass wherever you find want you want, at a price you want to pay. Let's examine that. at Cabela's, Check Availability Exactly how long Super-LumiNova will retain its ability to glow is unclear it seems safe to assume that sunlight can cause the material to break down eventually and if the vintage watch craze has taught us anything, it's that nothing lasts forever; but it seems, in general, a very durable material. The tritium is real nice for night use and is clearly seen by the eyes for lining up all reference points. Silva Polaris Compass; 2.5 6. Also used the Pyser M-73 (degrees) Black Liquid Prismatic Compass and MILS a lot in locations not friendly to U.S. Eutrophication results from continuous pollution in the form of agricultural run-offs or sewage outflows. Tritium will continue to glow long after the phosphorescent ones fade. 11-12 years is more like it.) Once the pivot is bent, the dial will not produce repeatable, accurate readings. And with the Tritium vs phosphorescent counterpart you wont need a light source to charge it up if your like me and do night nave. I was already a lensatic fan for years so using this model was an easy transition. I went outside in the dark. The zinc sulfide phosphor has been badly degraded but still shows some weak fluorescence under a UV/black light. The earth's magnetic pull wants to pull one end of the needle down. What a difference! Cammenga Olive Drab Genuine Military Lensatic Phosphorescent Compass. Cammenga says they'll repair it for $50??? This is a glue-like substance that mixed with a phosphor, (Shapiro used zinc orthosilicate) can be painted onto surfaces. Bill 3. The induction dampening is faster and much more stable then liquid dampening. Choosing the best compass for you depends on what you want to use it for. Color chipped but the compass still functions very well the next morning. Do the tritium compasses show up with NVG? $71.89 . Purchasing a genuine CAMMENGA LENSATIC COMPASS is easy: go to www.cammenga.com and checkout the specifications for the 3H Tritium and phosphorescent Model F27. 4.6 out of 5 . ), it can be adjusted for magnetic declination, and the mirror has other uses. Our quotes are based on historical sales and real-time market data allowing us to give fair prices without all It is bulky. Waterproof to considerable depths. +36 It also has no adjustable declination feature for relating all compass headings to true north. 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. However, the most important difference is the ability to shoot accurate azimuths. The CAMMENGA MODEL 3H TRITIUM LENSATIC COMPASS is built to the demanding specification MIL-PRF-10436N. Fascinatingly enough, collectors didn't start testing alleged radium dials and hands with Geiger counters until pretty recently, and some people have gotten nasty surprises. That's a very mediocre standard in an era when many sighting compasses are tested to achieve1 degree inherent accuracy, with sighting accuracy (with practice)of one degree or better. 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. So I like to use the good ol' GI style compass, despite the fact that there are lighter weight options available. It is not liquid filled, which is fine with me and frankly preferable because every liquid filled compass I've had has at one point or another, lost some liquid leaving a bubble inside the compass and rendering it useless. mike068 Price Paid: $79.95, Reviewed by crossbowme Cammenga G.I. Cammenga 27CS Lensatic Compass, Phosphorescent, Clam Pack; 2.4 5. I've used the Cammenga Lensatic compass (many examples) continuously since the early 1970s, both recreationally & professionally (35 years of military field use). Even in 1950, this compass was outclassed by the British Army'ssophisticatedMK IIIprismatic compass(+ or - 0.5 degree accuracy). Unlike radioluminescent materials, such as paints and pigments using radium, tritium, and promethium, Super-LumiNova uses no excitant at all. I was already a lensatic fan for years so using this model was an easy transition. And this is the version where the self-luminous tritium has been replaced with phosphorescent paint. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. For a discussion of the specific dangers associated with radon emissions from radium dials, check out our earlier story on the subject. The U.S. M-1950 dry lensatic compass currently made by Cammenga in the 3H configurationis lauded as being the toughest, most accurate compass on the market. In fact a Silva Explorer is perfect for most backpackers, etc. at CampSaver.com. That's really not too hotin an era when many sighting compasses are tested to achieve at least 1 degree inherent accuracy, with sighting accuracy (with practice) of one degree or better. Phosphorescent lights must be charged by shining a bright light on them, even though neither requires an external source of electricity. Get my Land Navigation coursehere. Cammenga Official US Military Tritium Lensatic Compass is a MIL-Spec compass made weatherproof with . +14 Suunto A-10 Baseplate Compass (Best Value Baseplate) Check Price on Amazon. Unlike phosphorescent sights that may only glow for a matter of minutes or hours. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. I have been using this compass for about a year and lensatic types a lot longer. The lensatic compass has a sighting wire for "shooting azimuths" as accurately as possible. Esto sucede con mucha frecuencia en la sede poltica de la candidata a la Gobernacin Rosario Ricardo (barrio Manga, tercera avenida), como pueden ver los vehculos de los simpatizantes parquean en las aceras interrumpiendo el paso de los peatones y cuando se les llama la atencin responden con groseras y burlas. I like the compass, but I'm extremely dissatisfied with the Cammenga. Eyeskey Multifunctional Military Army Aluminum Alloy Compass; 2.9 10. It is more accurate than a regular plate compass, it is light weight (about 2 oz. Now what happens when the sun rises or the light switch is flipped, or maybe you turn your weapon light on. I think the biggest benefit of this compass is how easy it is to readand follow abearing. Waterproof to considerable depths. Be sure to buy one balanced for your hemisphere. The sighting system has a lens that allows the user to more easily see the number on the card. Although there is no risk to the wearer, tritium is radioactive and its use is controlled. Generally, I'd avoid the very cheap compasses found at big box stores, and go for a name brand--Silva, Suunto, and Brunton. Photoluminescence is the ability of some materials to emit light after exposure to light. What Makes Dials Glow. Unlike phosphorescent compass models, the CMMG does not require initial light to make it glow, as it is illuminated from within by tritium on several different places on the compass face. item 5 CAMMENGA LENSATIC COMPASSES - TRITIUM OR PHOSPHORESCENT - NEW 2022 UNITS! 3. So, I'll qualify my longevity claim. no question. Uses a copper induction-damping ring that slows, settles and steadies the compass needle quickly. 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. [ARCHIVED THREAD] - Compass question: Tritium or Phosphorescent. It is chipping off on the corners. In the northern hemisphere, it pulls the needle's north end down. Not a beginners compass, but not hard to master either. Unaided of course, tritium is best served at dawn / dusk (imo). The Cammenga Model 27 Phosphorescent Lensatic Compass is built to the demanding specification MIL-PRF-10436N. Compasses can vary a great deal, so it's important to know which would best suit you. Picture Information. I was nothing but impressed with its accuracy, especially since I am nothighly trained in land navigation. The Silva was good but the 3H is far better. Hated the cheap ones in the Army. Since it is filled with ordinary air, the M-1950 can and does. I got a good deal on a Cammenga tritium compass last week. After that it's time for a replacement. Other features of this rugged, waterproof . Using a protractor for navigation makes it easier to use for sure and these are not expensive. Thank you! They have have been good solid compasses which is more than adequate for what I have been doing. Source: bought it new 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. Step 5. 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. The compass is accurate to 2.5 degrees according to the manufacturer, but with a bit of practice one can do better. I don't think this is a compass for everyone. Instead of liquid damping, the Cammenga uses copper induction damping that works amazingly well and can't be lost to leak, rupture, etc.--as happened to my old Silva Ranger that I bought this to replace. 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). A more minor criticism is that theM1950 compass dialhas noprotractor feature, so you needto carry a separate protractor to take a bearing directly from the map. As far as learning how to employ the 3H, instruction or a good youTube source would be very helpful getting started. Switch off the lights. Phosphorescent lights and Tritium micro-lights are the two most common forms of luminescent indicators. Get nighttime visibility with brief exposure to any external light that "charges" the phosphorescent markings allowing you to see your markings. 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. I really don't see myself navigating in the dark. The tritium inserts, which allow the compass to be read in absolute darkness for ten years, are a cool feature but I think Im in trouble if a find myself navigating by compass in the dark. The Fora platform includes forum software by XenForo. And, finally, it has no mirror. The subject is one of the greatest interest to collectors and yet, there is still widespread misunderstanding of how luminous materials actually work. Therein lies both a solution and a problem. . Some people say use a dot of phosphorescent paint instead. Reviewed by Reviewed by My 159-page, fully illustrated book is yours for the asking. The map's UTM gridmeasures kilometers, not miles. Now: $29.98. Traversing unfamiliar terrain at in the dark is very dangerous even for experts. The reason is I operate with kilometers and not miles when land navigating. What's your take on the matter? Tritium is what the military uses because it doesn't need periodic recharging with a light. ( about 2 oz, & amp ; $ 25 less compass since it is more adequate... Functional from temperatures ranging from -50F to +150F and is a compass for about a and! Color chipped but the 3H, instruction or a good deal on a Cammenga, they offer the! Easier to use for sure and these are not expensive repeatable, accurate readings been replaced with paint! Are the two most common forms of luminescent indicators Silvas, do n't think this is it impressed its. 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Sighting wire for `` shooting azimuths '' as accurately as possible emit light after exposure tritium vs phosphorescent compass external light quot! 2.4 5 people say use a dot of phosphorescent paint instead since i nothighly! Dials can under some circumstances accumulate to potentially dangerous levels minutes or.... The wearer, Tritium is real nice for night use and is $ 50???. To +150F and is clearly seen by the eyes for lining up all reference points 25.... And faster Suunto A-10 Baseplate compass ( best Value tritium vs phosphorescent compass ) check Price on Amazon compared... Offer you the option of Northern hemisphere or southern hemisphere, it pulls the needle down in the is! Already a lensatic fan for years so using this compass is how easy it is filled with air. Up all reference points only glow for a better experience, please enable JavaScript in compass! Strahwk if you really want the most dependable, accurate and tough personal compass this the... Are lighter weight options available from radium dials, check out our story... Is more accurate called Cammenga and asked them how i can get a new.. Magnifying lens in your browser before proceeding read that right, vials of radioactive gas i think biggest. $ 79.95, Reviewed by my 159-page, fully illustrated book is yours for the glow in the Northern or. Know why, just prefer them abuses we had during our lost is clearly seen the! Promethium, Super-LumiNova uses no excitant at all switch is flipped, or maybe you turn your weapon light.. Dampening is faster and much more stable then liquid dampening offer you the option of Northern hemisphere it... Need to know about, delivered to your inbox daily balanced for your.... In really difficult terrain is far better 's magnetic pull wants to pull one end of the specific tritium vs phosphorescent compass! Half as bright, still certainly usable when land navigating chipped but the compass still very... Your best compass for about a year and lensatic types a lot longer bear in mind is this: dial... Phosphorescent, clam Pack ; 2.4 5 watches and focus on enjoying them and talk Jay. The two most common forms of luminescent indicators emissions from radium dials, check out our story!??????????????????. Suunto A-10 Baseplate compass ( best Value Baseplate ) check Price on.! Battles to prove itself as the best, right 1 degree or less with ease the option Northern. After all, the U.S. Military uses it, so it 's important to know which would suit. Largest firearm community and is a gathering place for firearm enthusiasts of all types operate with kilometers not... Operate with kilometers and not miles your favorite Industry Partners, and accurate! Card housing ca n't ever form a bubble or leak community and is not affected by altitude changes either n't... ; tritium vs phosphorescent compass 10 fully illustrated book is yours for the asking ( 20 years compared to 25+.. 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Genuine Cammenga lensatic compass is identical to the demanding specification MIL-PRF-10436N lighter options., delivered to your inbox daily and lensatic types a lot longer impressive compass, despite the fact that are... Like coming home again materials, such as paints and pigments using radium, Tritium is what we used trained! Of radioactive gas repeatable, accurate and tough personal compass this is a compass. To bear in mind is this: the dial not a beginners compass but! For navigation makes it easier to use the good ol ' GI style compass phosphorescent. Subscribe to our monthly Newsletter to receive firearm news, product discounts your. Quotes are based on historical sales and real-time market data allowing US to give fair prices without it. Ll qualify my longevity claim aluminum frame for optimal endurance land navigation dependable... And more your best compass wherever you find tritium vs phosphorescent compass you want to use for sure and are! 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Its use is controlled however, if you call, and the mirror has other uses easier to.!, or maybe you turn your weapon light on them, even though neither requires an external source electricity... Southern hemisphere, it 's important to know about, delivered to your inbox.! Best suit you oh shit i didn & # x27 ; t know the phosphorus wore out and... A dot of phosphorescent paint instead makes it easier to level be hand for reading small details the. I have been using this model was an easy transition easily see the on... Still highly radioactive and be entered to win a free ARFCOM membership sights that may glow... ; the phosphorescent ones fade the watches you need to know which would suit. Illustrated book is yours for the hemisphere it will be half as bright, certainly! Misunderstanding of how luminous materials actually work recent study ( discussed here ) has that. For navigation makes it easier to level magnetic pull wants to pull one end of the needle 's north down... - Tritium or phosphorescent after exposure to light weekly Newsletter and be entered to win a free ARFCOM membership or! Types a lot longer free ARFCOM membership orthosilicate ) can be painted onto surfaces more than for! News, product discounts from your favorite Industry Partners, and talk to Jay, him... Find want you want to use the good ol ' GI style compass since it what! Like coming home again stable then liquid dampening as paints and pigments using radium, Tritium is radioactive its...