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Sighting Compass
A compass is an instrument used by people when they have to navigate a particular area. The mechanism of a compass is possible because of the earth's magnetic field. A common compass has a magnetized needle or pointer placed in a face that looks similar to a clock. The face has the four directions - North, South, East and West. Other compasses will include the secondary directions like northeast, southeast and so on.
A lensatic compass is a type of compass that consists of a magnetized dial and not the usual simple needle. It is the magnetized dial that indicates the directions and the compass' face contains the numbers that indicates more specific directions. A lensatic card is always joined to it. The lensatic card lets the user to view the results from the compass without looking down directly at the face of the compass. These parts of the compass are important when learning how to use a lensatic compass. A protractor is also needed when checking with the map.
The lensatic compass has a circumference that is divided to 6,400 units and is measured as: One unit = one meter of separation at 1000 meters of distance, and, One mil = one yard at 1000 yards (military system).
Here are simple tips for beginners on how to use a lensatic compass:
In using a compass when getting a bearing, the user should unfold the upper cover so that the lensatic compass is positioned at 90 degrees angle. The lensatic lens should be raised at a 45-degree angle. Be sure that the thumb hook is pointed down.
Place the thumb in the compass hook so it would remain steady. Face the object which is the target then place in the center its sighting wire.
Read and interpret the degree indicators in the compass card while holding the compass toward the direction of the target object. A user can do this by carefully moving the compass lens upward and downward. The bearing could be read in degrees or through military system.
In setting a bearing with the lensatic compass, make sure that the target object is faced by the person holding the compass. The moving marking should be turned and aligned with the magnetized north as seen in the compass card.
If the directions are determined via the magnetized north and the markings, the compass will provide the user familiarity to the place being navigated.
In following the bearing of a compass, the user who is already familiar with the directions must pick a marker from a distance and set it as a reference point during travel. In case the reference point becomes out of sight (possible causes could be thick clouds, trees, fog, etc.), the user should stick to the bearing given by the compass. In few occasions, it is advisable to determine the current direction and location by getting another bearing to the reference point.
As a beginner who is just studying on how to use a lensatic compass, please spend some time getting familiar with the compass and do not try out immediately in an unfamiliar territory such as forests. Once able to follow the simple tips on how to use a lensatic compass, a traveler would be more confident trekking the woods, forests and mountains.
Please click these links if you want to know more about how to use a lensatic compass or how to use a lensatic compass in general.
Natural Sine Map Compass?
I have a stanley london compass called natural sine that i would love to know something about . It is solid brass,has groves for sliding into tripod,two adjustable levels inside compass to make final leveling.It came from a house clearence and has no serial number,but is very much a quality item. The name natural sine is around the top of the compass face.the sighting mirror closes over as the lid with a brass catch it is 6 sided and maybe 20-25 mm deep
Try:
http://www.stanleylondon.com/sextcomp.htm
http://www.majorsurplus.com/The-Grand-Stanley-London-Compass-P1031C0.aspx
http://www.antiquesextant.com/compminers.htm
also, ebay
Arizona Caving with Brunton
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 Compass, Mirrored Sighting, Clinometer, Thermostat  US $33.57
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 Silva Tech Guide Compass Sighting Mirror Hunting Compass US $23.95
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 World Famous Military Sighting Compass US $14.99
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 Baladeo Sighting Compass US $18.39
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 Lesatic Black Sighting Compass US $16.71
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 Silva 2800515 Marine Ranger Clinometer CL Compass W/Sighting Mirror US $61.99
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 Recta Mirror Sighting Compass DS40 Scout (Beginners) US $47.49
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 Silva Guide 426 Compact Sighting Compass - Graphite US $28.12
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 Brunton® 60M Mirror Sighting Compass US $55.68
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 Brunton Pioneer; Mirrored Sighting Floating Compass US $24.53
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 SILVA GUIDE 426 COMPACT SIGHTING COMPASS GRAPHITE US $21.65
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 Recta Globemaster worldwide sighting compass swiss NEW US $106.49
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 BRUNTON F-9077 MILITARY STYLE LENSATIC SIGHTING COMPASS US $21.95
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 SILVA GUIDE 426 COMPACT SIGHTING COMPASS GRAPHITE 2801149 US $25.21
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 Silva Lensatic Needle Compass w/ Magnified Sighting Arm US $26.99
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 Silva Guide 426 Compact Sighting Compass-Graphite-2801149 US $31.55
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 Military Prismatic Sighting Compass w/ Pouch US $18.24
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 Silva Needle Compass Guide, Orange with Sighting Mirror US $25.49
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 Brunton 8040G Mirrored Sighting Compass US $23.00
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 BRUNTON Mirrored Map Compass Flip Top Protective Lid W/Sighting Mirror BN152 US $43.50
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 Silva Precision 80 sighting compass US $100.00
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 Brunton Elite Mirrored Sighting Clinometer Compass 15TDCL: F-15TDCL Compasses US $29.85
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 Brunton Military Style Sighting Compass - Lensatic 9077 Compasses US $12.99
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First Sighting
$8.99 ... |
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Brunton Sight Master; Reciprocal Bearing F-SM360LA
$81.84 FEATURES Use as hand held unit or sighting model: 1 10X magnified: 2 Diopter sight: 3 Dial shows both forward & reciprocal headings: 4 Incremented by 0-360 degree: 5 Aluminum housing with inch and mm scales: 6 Neck lanyard: 7 Tripod mount: 8 Sine table: 9... |
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Brunton Mirrored Sighting Map Compass 8040G Declination Adjustable With Clinometer
$36.56 Tool-free declination adjustment makes for less confusion, and the built-in thermometer gives you knowledge most compasses do not.... |
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Professional Map Compass with Degree Ticks and Emergency Sighting Mirror
$7.99 Folding Professional Map Compass great for the everyday outdoorsman. Includes large full 360 compass w/ 2 degree graduation, lanyard, survival signal mirror w/ sighting slot. Easy read display, clear plastic body with built in standard and metric measurements for map reading and orientation.... |
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Brunton Survey Master Compass/Clinometer
$196.99 Fast, liquid-damped scale enables precise readings in a matter of seconds. Compass scales 0-360° are accurate to ±1/2°. Clinometer scales 0-90° and 0-150% are accurate to 1/4°. Includes lanyard and instructions. 6"L x 2"W.... |
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Cabela's Ultimate Deer Hunt
$5.00 This software is BRAND NEW. Packaging may differ slightly from the stock photo above. Please click on our logo above to see over 15,000 titles in stock.... |
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RANGER TYPE SIGHTING COMPASS
$5.51 Military Compass - Orienteering Compasses sighting mirror, transparent base with liquid filled luminous pointer, value priced. Camping and Military Gear... |
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ORIGINAL PATENT APPLICATION NUMBER 16,156 FOR IMPROVEMENTS IN SIGHTING AND LIKE COMPASSES. (RUSSIA).
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ORIGINAL PRINTED PATENT NUMBER 11,750 FOR IMPROVEMENTS IN SIGHTING COMPASSES AND LIKE INSTRUMENTS. [1910]
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Military Prismatic Sighting Compass w/ Pouch
$8.99 Lensatic Compass How to shoot an azimuth for fun and profit: Get the ultimate direction finder, a lensatic compass. It has a 2-1/8" dia face marked in 5-degree increments, a 1/4" dia sight lens, 9/16" dia bubble level, and a 1-1/2" sight with crosshairs. Measures 3-1/4" x 2-1/2" x 1-1/8" when folded and comes with an 18" long cord and an olive drab belt pouch. For instructions, go to www.armystu... |
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