I purchased this compass because I like the way Brunton uses the circle in a circle method to align the compass and because it has built in scales for UTM grids. This is a good compass to use if you are using paper maps with a GPS. The scales work on 1:24k Topo maps available from the USGS as well as military 1:50k maps. The built in ruler is reversible for English or metric measurement. It also is adjustable for declination. A separate ruler/scale is included to allow you to determine Lat/Long on maps as well. This is a good general purpose compass for someone who wants to be able to work with Topo maps and a GPS. 4 stars

This is my second Brunton Eclipse compass I have owned. I lost my first one last year while deer hunting. Just the fact that I bought another one is a tribute to the product it's self. I use the compass along with my GPS unit and a paper map to locate hunting areas in areas that I am not familiar with. Works great. 5 stars

Prior reviewers have done a good job describing the many nice features of this compass. It has a declination adjustment, the markings on the compass ring are to one degree. It has UTM tools for 5 different scales and 5 different radius rings for marking targets on a map. It has a small ruled (3 inches) straight edge that has metric on the back. It comes with a short lanyard. Unlike some similar Brunton compasses, it does not include a whistle. The "circle in circle" design makes following a bearing about as easy as a compass can make it.

However, the very first time I raced with the compass, all the UTM markings washed off of it. So did the blue circle on the base plate, making the "circle in circle" feature hard to use, impossible in low light.

I contacted Brunton about the problem and did not get any response, not even the courtesy of acknowledging the feedback on their product.

Then I set down my pack on a hard surface and the compass came out of the base plate. I was able to replace it, but it didn't inspire confidence.

I really like the features this compass offers, but have been disappointed with the durability, particularly of the markings, and the lack of response from the manufacturer. If they get back to me, I will edit this entry.

3 stars

I purchased the Brunton Eclipse Adventure Racing Compass in addition to Brunton 8099 primarily for taking "on-the-fly" bearing readings. This a great choice for a baseplate compass particularly if you're doing any type of amateur or competitive orienteering. The cirle-in-circle feature is quick to use, accurate, and dependable. The multiple scales accommodate using various size topographic maps commonly used for outdoor hunting, fishing, hiking or geocaching. This a must have for anyone looking for a dependable baseplate compass that will last for years. 5 stars