![]() ![]() That's the simplest way for use with maps that have a declination diagram. Holding it all steady, rotate the bezel to align the index on the bezel with the north arrow of the compass. Now, make sure the map is not disturbed (I like to set a rock or two on it) and align an edge of the compass with the desired direction of travel. Align one of the edges of the compass with the mangetic north on the map's declination diagram, and ROTATE THE WHOLE MAP AND COMPASS TOGETHER until the north arrow is aligned with the index line of the compass. To take a bearing with the Cammenga, either the baseplate or the lensatic model, you first must "orient the map to the terrain". Before that, I had some el-cheapo model that did not have a declination adjustment and developed an air bubble in the dial. I was familiar at the time with normal baseplate compasses, my go-to for the last few years being a suunto m3. When I first took interest in Cammenga compasses (at the time the lensatic model) I was curious as to their use. While it may be a misnomer for Cammenga to call the d3-t a "protractor" compass, it is certainly possible to take bearings off of a map without the need for an separate protractor. They should give you a job as a design engineer.Ĭlick to expand.This is my first post here and I only registered because I respectfully disagree with your above statement. They shouldn't just send you a new compass. Good for you for taking the time to point out the shortcomings of their compass design before a lot of unsuspecting people wasted their money on that product. ![]() People who understand compass use don't make compasses this way. Their desire to utilize existing materials and technology/manufacturing techniques exposed the fact that they neglected to integrate features on the baseplate compass that are essential to its proper use. The problem that seems to have arisen with Cammenga is that they came up against a relevance paradox. They're the same product with a slight modification, so they can be sold to two different markets. It's the reason that Cap'n Crunch Crunchberries and Peanut Butter Crunch looked the same. You know who makes decisions like this? Marketing people. In actuality, it appears that all they did was take their existing compass cup from their military version and glued it to a clear baseplate and called it a baseplate compass. One would hope that a compass company would be familiar enough with their product's use to have avoided such a bonehead design oversight. The magnetic north arrow spins independently: On a typical baseplate compass the bezel contains degree gradations AND orienting lines to facilitate bearing measurement (protractor) on a map. To my main point: even without being able to see through the dial, you could make the the "protractor" compass actually serve a protractor function if u made a few design changes. Taking bearings off the map without carrying a separate protractor is after all the main reason for a baseplate / orienteering compass. ![]() Those are great points in the positive column. "I appreciate the reply and agree with all the "pros". He also mentioned a key point at to why the bezel can't be transparent "The main reason our dial cup is not 100% transparent is because of the need for the copper cup inside the compass capsule." I still had ideas for improvements and followed with this: I got a reply from the VP of sales who generally described the advantages of the compass compared to their 3H lensatic military compass. I'm not sure what the designers were thinking." The whole point after all of a protractor compass, is to eliminate the need for a separate protractor for taking bearings off the map. The dial typically has the degree marks and the North arrow floats by itself. This is because you can't see through the dial with reference lines to orient the bezel to north on the map. You can't take a bearing off the map which is what a baseplate compass was designed for. I thought it was going to be like a baseplate compass only with your quality components. You can't use it as a protractor anymore so that you can use the 3H (lensatic) as a protractor. "Having finally got the compasses protractor d3-t I have to say I'm little disappointed with the design. I brought this to their attention in an email as follows: When I got it I was very disappointed to realize that simple design flaws (in my opinion) prevented it from working as an effective baseplate compass at all. I acquired a D3-T when they first came out because I was excited for a quality induction dampened tritium lot baseplate compass of Cammenga quality. I just posted this as a reply in another thread, but I think is got some important information for anyone considering buying a Cammenga D3-T, so I'm posting in a thread of its own. ![]()
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