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Brunton built the Eclipse Pro Mirrored Sighting Compass for surveyors, environmental engineers, foresters, and others who rely heavily on compasses. The compass mirror enables you to take accurate readings and see your target and compass dial at the same time. Plus, the Eclipse Pro incorporates Brunton's circle-over-circle alignment system, which eliminates the possibility of reading a bearing in reverse—align the red circle that indicates north over your compass dial circle, and you'll know exactly where you're going. Geologists will appreciate the three clinometer systems and bubble level that help in getting strike and dip measurements of geological features.
Bottom Line: The Brunton Eclipse Pro Mirrored Sighting Compass meets the needs of those who are in the field every day.
So if you're looking for an affordable, do everything compass, this one is perfect. I've used the Silva pro for years, and this one does even more, and is simpler in taking bearings since you can use the small mirror to line up your bearings. The 2 inclinometers are really nice, a must for staying safe in avalanche terrain. And if you're like most people who don't use a compass everyday, the little cheat sheets that pack behind it under the protective case will keep your skills intact when you really need to remember how the functions all tie together.
James, The 8099's baseplate is only marked for 1:24,000. A better image showing this can be viewed here: http://www.brunton.com/product.php?id=71 I hope this helps.
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I have another Brunton that's simpler and I like that one too. This one has a lot of features and it's built very well. my only complaint is the writing on it is tiny, and my eyes aren't as good as they used to be.
The clinometer is a nice feature for doing height and grade measurements. You can also determine latitude roughly by sighting the north star and taking a reading.
You can adjust for declination/mag. deviation as well, and that's important. Nice clear baseplate with scales and magnifier. The instruction cards are also nice, with some basic info about navigation, knots, and first aid.
another nice feature is the reverse 180 degree reading on the compass. Ex 240/60 degrees. However, it requires that both readings be much smaller. I would prefer one larger number scale. I can figure the opposite by adding or subtracting 180.
I'll put this in my pilot gear bag and keep it for a lifetime. should last a long time, no problem. and yes, a floating compass would be nice, especially since it's quite expensive.
I can see the bullseye level for measuring strike but I don't see another swivel level for measuring dip and I can't tell if its there from the enlarged image. Does this compass have a dip angle level too?
The previous rating of three stars for this product was uncalled for. The older version of this compass is very accurate, to within about 2 seconds. Great durability. Good investment if you are able to keep track of things well, otherwise the $82 investment can really make you angry if it falls into the lake... personal story. Bouyancy would be a great addition to this compass...
What is the angular accuracy of the Eclipse Pro compass? Is there a compass that has angular accuracy to within a second and can be camera tripod mounted? I am trying to build a fence through dense brush and trees.
Measure the same offset at both ends of your fence that would give you a clear sight, establish points visually along the clear sight path & measure back over to your true line. Can't do that? Bearings on deeds are not necessarily oriented to magnetic north given on a typical compass...could be 10-15 degrees off depending where you live. Many legal issues could arise from your fence building, check your zoning regs and hire a surveyor.
a second?! No compass in the world can, nor ever will, do that! Such precision is only possible by repetition of angles with a high-precision theodolite or total station ($10,000+). Did you mean 'minute'? Best you will do with a compass is 15 minutes and that could change later in the day to a different reading. Some places pull the compass off several degrees. Overhead wires, sun spots and other features can affect compass readings as well. A compass is for approximating directions. Beware too, that computer programs will often give one second accuracies where no such accuracy could ever exist.