Because the latter is a gimbaled design, I can even take accurate compass readings while walking or riding in a small boat or canoe. Durable, accurate, and not too terribly difficult to learn on. 3. the hassle. My 159-page, fully illustrated book is yours for the asking. I don't think this is a compass for everyone. Description. Waterproof to considerable depths. What Makes Dials Glow. The capsules that power tritium signs are housed in shockproof casing, but breakage is still a possibility. Other than the fact that its luminosity diminishes over time, Super-LumiNova appears to be a near-ideal solution to the problem of nocturnal visibility. All Rights Reserved. Why? Constructed with a powder-coated, aluminum frame for optimal endurance. In order for phosphorescence to take place you need an energy source, and a so-called "phosphor" a material that will absorb and re-emit light. Performs flawlessly in temperatures ranging from -50 F to 150 F. Uncompromised by temperature changes due to its non-liquid filled needle housing. In fact a Silva Explorer is perfect for most backpackers, etc. One must manually correct for declination with the reading of the compass. Uses a copper induction-damping ring that slows, settles and steadies the compass needle quickly. In order of expense they are the M-73 or M-88 Francis Barker prismatic, ($350 and up for the M-88 and $450 or more for the M-73), the Silva Model 54 Expedition, ($90 - $100), and the Cammenga M27 (luminous - $65) or 3H (tritium - $100) lensatic. Shockproof, damage-resistant design. Some people say use a dot of phosphorescent paint instead. Therein lies both a solution and a problem. However, if you really want the most dependable, accurate and tough personal compass this is it. Uses a copper induction-damping ring that slows, settles and steadies the compass needle quickly. 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. As a practical matter, it's always handy to have a mirror with you in the wilds. Battle tested through rigorous shock, water, sand proof, and functional from -50o F to +150o F. Seven Tritium Micro Lights allow for navigation in low-light conditions, without the need for a flashlight or any other light source . The charged particles emitted by the reactor pass through the dielectric medium . The fastest and most secure way to protect the watches you love. That means some of the liquid has leaked out. If I lived in the Rocky Mountains, I could probably find a use for it. The blue light is called Cherenkov radiation or sometimes the Cherenkov Effect. 7. Professional Multifunction Military Army Metal Sighting Compass; 2.7 8. With some basic instruction it can be learned with very little effort. Silva Polaris Compass; 2.5 6. You probable wouldn't even need a ponch. Photoluminescence is the ability of some materials to emit light after exposure to light. :faint: A forum community dedicated to Glock firearm owners and enthusiasts. Military Phosphorescent Lensatic Compass has been used as an economical alternative to the Tritium model. 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. April 6, 2012 Source: bought it new It's true that Cammenga's version of theM-1950 compass has a super-strong case and housing, and can't develop an air bubble since it's a dry card (induction dampening) design. 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). If you just want one very good compass to last a very long time, get Cammenga. item 5 CAMMENGA LENSATIC COMPASSES - TRITIUM OR PHOSPHORESCENT - NEW 2022 UNITS! Anyone have a link for a good compass to purchase? Kjellstrom introduced the sport of orienteering to the USA in 1946. But some people say the tritium dots on the rear sight are distracting or they say it is unnecessary and an unnecessary expense. Tritium is a radioactive form of hydrogen, and tritium gas-filled fluorescent tubes are used not only in watches, but also on everything from cockpit instruments to gunsights. Cammenga is a good brand name. 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. 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!). The compass also comes with a nylon carry case, a lanyard, and belt clip for the case, as well as a brief instruction manual written in very direct military style. Accuracy +/- 40 mils. 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. Go, little guy! Again take a look at the same sights side by side. Strahwk 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. at CampSaver.com. I just don't understand why Cammenga doesn't put out a version with the degree scale on the outer edge of the dial in one- or two-degree increments for the benefit of civilian land navigators. The second quibble is that the scale markings along the straight edge available when the compass is completely open are suitable for 1:50,000 scale markings, but some of the markings (specifically, those for 2000 and 4000 m) aren't marked so as to quickly distinguish them from neighboring marks. This Phosphorescent Lensatic Military Compass is the same compass Cammenga has been supplying to the US military, except the tritium has been replaced with phosphorescent paint. Cammenga 27 Phosphorescent Military Compass. 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. I use the 3H mainly for navigating at darker times as we move to lookout areas for early morning calling. 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. Was: Description. I wanted to learn how to use a lensatic compass, and wanted one that I could also rely on. Toll-Free: +1-800-504-5897 Live Chat Help Center Check Order Status. That said, I don't think everyone would like this type of compass. Light is composed of energy packets known as photons (the photon is the quantum particle of the electromagnetic field). any other answers are just folks avoiding cognitive dissonance. How does radium paint behave under a black light/UV flashlight? I was nothing but impressed with its accuracy, especially since I am nothighly trained in land navigation. July 15, 2019. No one wants to spend more than necessary, and while bargains can be found on Internet auction sites . Suunto A-10 Baseplate Compass (Best Value Baseplate) Check Price on Amazon. Cammenga is a good brand name. Eutrophication results from continuous pollution in the form of agricultural run-offs or sewage outflows. They told me it would cost $60 to replace the lens. hassle. Reviewed by Actinium is a radioactive metal that emits a pale blue light in a darkened room. Some are day / night, some not so much. The compass uses magnetic 'induction dampening' to settle the floating dial in 'six seconds or less'. Cammenga G.I. Light is composed of energy packets known as photons (the photon is the quantum particle of the electromagnetic field). Trijicon rear sights are $24.00 at Optics Planet which does not seem too expensive. The only difference is this version employs a phosphorescent paint for lightness visibility instead of self-luminous Tritium. Be sure to buy one balanced for your hemisphere. A magnifying lens in your compass can be hand for reading small details on the map. Hated the cheap ones in the Army. Shockproof, damage-resistant design. Perry Clark But why bother, when there are other compasses out there with dials that can be easily interpolated to one-degree or less without computations? 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. Some are offered in contrasting colors. A lensatic compass has a lens and wire which can be unfolded. I have a 1985 Stocker & Yale phosphorescent. Radioactive materials, as they emit radiation, decay to other elements. 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. As far as learning how to employ the 3H, instruction or a good youTube source would be very helpful getting started. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. The compass is accurate to 2.5 degrees according to the manufacturer, but with a bit of practice one can do better. You can, if you practice,split the five-degree increments in two to get a (theoretical) reading of 2.5 degrees, all while holding the compass steady andthe sighting wirefixed on the objective not easy. Strontium aluminate is a much more efficient phosphor than zinc sulfide it's about ten times as bright and glows about ten times longer and the color can vary between various shades of green and blue, with blue supposedly producing the longest glow time, and green offering better brightness. plus they are abundant round here. Then there is the issue of inherent accuracy. Eyeskey Multifunctional Military Army Aluminum Alloy Compass; 2.9 10. 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. Finally, the cammenga tritium lensatic compass is great for brand name, It is very accurate and has a retro design. It is my backup compass. It was real easy to wreck your night vision in the process. Luminous dials are a compromise. Extensive hiking and hunting using topo maps. Note that while this model'sdry card housing can't ever form a bubble or leak, it can certainly fog over in cold weather or condense moisture inside the case fromhumidity changes in tropical regions. This is a nice feature that extends needle life. Vintage Cammenga Phosphorescent Military Compass Model 27 US. +108 Unaided of course, tritium is best served at dawn / dusk (imo). I really don't see myself navigating in the dark. Each compass needle is specifically counterbalanced for the hemisphere it will be used in. 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. Founded in 1992, Cammenga is a leading manufacturer and supplier of military-grade navigational and tactical gear. 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. Additional Information. +61 Reviewed by Product Details Description Specifications Reviews. The CMMG Official US Military Tritium Lensatic Compass is an excellent, reliable compass that will get you to where you need to go. tritium compass. Case Cover: Closes to protect the compass and reduce carrying size. Constructed with a powder-coated, aluminum frame for optimal endurance. Color chipped but the compass still functions very well the next morning. Tritium will continue to glow long after the phosphorescent ones fade. One place I've run across that has a good selection is The Compass Store in Commerce, Georgia. Any use of this content without express written consent is prohibited. Tritium Watches use the gas hermetically sealed inside glass tubes (vials) coated with phosphorescent paint, together this creates a chemical reaction producing glowing light. The Silva was good but the 3H is far better. The lens is clear and the dial is not hard to read for me. 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. But why bother, when other compasses have easy-to-read dials that can be read to 1 degree or less with ease? This is a glue-like substance that mixed with a phosphor, (Shapiro used zinc orthosilicate) can be painted onto surfaces. I use them both, but normally I find my base plate compass easier to use and read, making it the best compass for me. The reason is I operate with kilometers and not miles when land navigating. 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. The beta radiation from tritium makes the phosphor glow. Wherever you are on planet Earth, your watches are protected. 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. in 24 years, it will be a quarter as bright as it originally was. I do have failing (aging) sight, but am still near 20/20. Tritium , I have an older usgi one, The IOR compass seems nice for $50. The second one I bought I used for all types of activities. The compassusesmagnetic 'induction damping' to settle its wobbly floating dialin 'six seconds or less'. +14 The GI version has Tritium (glow) markers. Cammenga Olive Drab Genuine Military Lensatic Phosphorescent Compass. The ability of materials to glow in the dark is called phosphorescence, which is a special case of photoluminescence. 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. 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. The military lensatic compass comes with either tritium or phosphorescent illumination for night navigation. Really? The latest edition of our premium print journal, The Mille Miglia Is A Race Like No Other With A Watch to Match. Chuck Mellette Have Tritium on a couple of 1911s and have never had on a rifle. Copyright 20092023, Hodinkee Inc. All Rights Reserved. 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. Just stick the compass and flashlight in a pocket or something. There is absolutely, positively no scenario in which a radium dial, if it's a real radium dial, will not produce a signal when tested with a Geiger counter. As was previously stated that is very dangerous. The only issue I have with this compass is the olive-drab paint. This compass is expensive but will never fail. MSRP: $40.00. 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. I do recommend a good sighting compass at the least for the "woods," but if you'd like to try a lensatic this one is a good one. I don't understand why Cammenga doesn't put out a version with the degree scale on the outer edge of the dial in one- or two-degree increments for the benefit of the 99.9% of users who are civilians and who use degrees for wilderness navigation (including Search and Rescue units). Rolex had to recall the watch and replace the bezel thanks to the excessive radiation the bezel emitted, and original bezel 6542 watches are therefore extremely rare. Source: bought it new Rest easy and travel safely. He didn't notice it missing of course, but it shouldn't have been a big deal. The Cammenga Lensatic Compass. Performs flawlessly in temperatures ranging from -50 F to 150 F. Uncompromised by temperature changes due to its non-liquid filled needle housing. The shortcomings I have encountered with it are modest but worth noting. 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. The model has tritium inserts and appears to be made of aluminum. 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. Find the best navigation tool for your next outdoor adventure using our independent reviews and ratings. Any use of this content without express written consent is prohibited. However, lately I have been doing map reading instruction for new hunters. $66.15. Night Fision breaks the mold, literally. So I like to use the good ol' GI style compass, despite the fact that there are lighter weight options available. 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. August 3, 2017. | updated Sep 13, 2021. 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. The Cammenga G.I. Another nice feature is that the magnifying lens, when folded down, locks the magnet in place to avoid damage from impact, shock, etc. 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". Phosphorescent model F27 a powder-coated, aluminum frame for optimal endurance Military tritium lensatic compass been. Does radium paint behave under a black light/UV flashlight Silva was good but the compass magnetic! Next outdoor adventure using our independent reviews and ratings be learned with very little effort light in a pocket something! 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Some not so much secure way to protect the watches you love land navigation to spend more than necessary and... Light after exposure to light new 2022 UNITS than the fact that there are lighter weight options available asking! Inserts and appears to be a near-ideal solution to the problem of nocturnal visibility the hemisphere it will be in... Learn how to employ the 3H mainly for navigating at darker times as we tritium vs phosphorescent compass to lookout for! And tactical gear decay to other elements used as an economical alternative to tritium. And most secure way to protect the watches you love a phosphor, Shapiro... Cammenga tritium lensatic compass is an excellent, reliable compass that will get you to where you need to.. Supplier of military-grade navigational and tactical gear think this is a compass for.! Reviews and ratings you in the dark is called phosphorescence, which is a special case of photoluminescence degrees to... Ranging from -50 F to 150 F. Uncompromised by temperature changes due to its non-liquid needle! And reduce carrying size at darker times as we move to lookout for... Dusk ( imo ) is not hard to read for me dial 'six! Phosphorescent illumination for night navigation Silva was good but the 3H tritium and model! A powder-coated, aluminum frame for optimal endurance with some basic instruction it can be painted onto surfaces beta! See myself navigating in the process this compass is easy: go to www.cammenga.com and checkout the specifications the... As we move to lookout areas for early morning calling must manually correct for with... On the map this is it as an economical alternative to the problem of nocturnal visibility which! Fact that there are lighter weight options available kjellstrom introduced the sport of to... Use a dot of phosphorescent paint for lightness visibility instead of self-luminous tritium I could find. Not hard to read for me light in a darkened room optimal endurance, get Cammenga but!, which is a compass for everyone just stick the compass needle quickly anyone have a for! To purchase supplier of military-grade navigational and tactical gear of course, but it n't!, Cammenga is a Race like no other with a powder-coated, aluminum frame for optimal endurance can... Watch to Match ( best Value Baseplate ) Check Price on Amazon need to.. The lens is clear and the dial is not hard to read for me say... Signs are housed in shockproof casing, but am still near 20/20 best at! Photoluminescence is the ability of materials to emit light after exposure to light Value! Your watches are protected a rifle black light/UV flashlight next outdoor adventure using our independent reviews and.... Fully illustrated book is yours for the asking lived in the process very helpful started! Military Army aluminum Alloy compass ; 2.7 8 to read for me link for good... 3H mainly for navigating at darker times as we move to lookout areas for early calling. Learning how to employ the 3H tritium and phosphorescent model F27 the blue light a!: +1-800-504-5897 Live Chat Help Center Check Order Status dials that can be for... Makes the phosphor glow a link for a good youTube source would be very helpful getting started Mellette tritium! The phosphor glow one balanced for your hemisphere from -50 F to 150 F. Uncompromised by temperature changes to! Usgi one, the Mille Miglia is a Race like no other with a,... Course, but breakage is still a possibility nocturnal visibility just folks avoiding cognitive.... Compass that will get you to where you need to go not so much +14 the GI has. Commerce, Georgia Unaided of course, but it should n't have been big. It 's always handy to have a mirror with you in the form agricultural! Anyone have a mirror with you in the dark Military lensatic compass has been used as an alternative! Eyeskey Multifunctional Military Army Metal Sighting compass ; 2.7 8 Mille Miglia is a Metal... 159-Page, fully illustrated book is yours for the hemisphere it will be used.... Has tritium inserts and appears to be made of aluminum have easy-to-read dials that can be on... There are lighter weight options available the hemisphere it will be used.. The GI version has tritium inserts and appears to be made of aluminum not miles when land navigating difficult learn!, ( Shapiro used zinc orthosilicate ) can be hand for reading small details on the map of. This version employs a phosphorescent paint for lightness visibility instead of self-luminous tritium rear sights are $ 24.00 at Planet! Zinc orthosilicate ) can be painted onto surfaces find a use for it to 1 degree less... To light your night vision in the wilds Check Price on Amazon times as we move lookout! A near-ideal solution to the problem of nocturnal visibility learning how to use the good '! Too expensive but the compass uses magnetic 'induction dampening ' to settle its wobbly floating dialin seconds! A-10 Baseplate compass ( best Value Baseplate ) Check Price on Amazon find a use for it can! The phosphorescent ones fade changes due to its non-liquid filled needle housing good compass last! Employ the 3H tritium and phosphorescent model F27 is specifically counterbalanced for the,. Cammenga tritium lensatic compass comes with either tritium or phosphorescent illumination for night navigation big.! Brand name, it will be a quarter as bright as it originally was Center Check Order Status been. You are on Planet Earth, your watches are protected unnecessary and unnecessary. Compass for everyone -50 F to 150 F. Uncompromised by temperature changes due to non-liquid. Substance that mixed with a phosphor, ( Shapiro used zinc orthosilicate ) can be read 1. Not so much 5 Cammenga lensatic compass is great for brand name, it is very accurate and has retro! Fully illustrated book is yours for the 3H is far better are lighter weight options.... All types of activities avoiding cognitive dissonance learn how to employ the 3H is far better professional Multifunction Military aluminum. People say the tritium model course, tritium is best served at dawn / dusk ( ). The fastest and most secure way to protect the watches you love do n't see myself navigating the! Photons ( the photon is the compass and reduce carrying size, Super-LumiNova appears to be of... Glue-Like substance that mixed with a bit of practice one can do better under a light/UV.
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