Cammenga 27CS Lensatic Compass, Phosphorescent, Clam Pack
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- Rotating bezel: bi-directional
- Frame materials: cast aluminum
- Damping process: induction (no liquid Req.)
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From the manufacturer
- Luminosity: Phosphorescent
- Jewel Bearing: Sapphire
- Rotating Bezel: Bi-Directional
- Climate Capacity: -50 F to +150 F
- Frame Materials: Cast Aluminum
- Waterproof: Yes
- Accuracy: +/- 0002 mils
- Dial Readings: Degrees & mils
- Casting: Aluminum
- Damping Process: Induction (No Liquid Req.)
- Carrying Pouch: LC-1 w/Belt Clip Included
- Lanyard: Colors (Body): Olive Drab
Cammenga Lensatic Compass Phosphorescent, Clam Pack
The Phosphorescent Lensatic Compass is built to the demanding specification MIL-PRF-10436N. Battle tested through rigorous shock, water, sand proof, and functional from -50 F to +150 F.
The phosphorescent lensatic compass has been used as an economical alternative to the tritium model for decades. It is the same compass Cammenga has been supplying to the US military except that the self-luminous tritium has been replaced with phosphorescent paint.
Equipped with a magnifying lens, sight wire, and dial graduations in both degrees and mils to ensure accurate readings. The Copper Induction Damping System slow the rotation of the magnet without the use of liquids. Built to last with an aluminum frame and waterproof housing. The Cammenga Compass is depended on by fighting forces, government agencies, and adventurous outdoor enthusiasts around the world.
The phosphorescent lensatic compass is built to the demanding specification mil-prf-10436n. Battle tested through rigorous shock, water, sand proof, and functional from -50 F to +150 F. The phosphorescent lensatic compass has been used as an economical alternative to the tritium 27CS for decades. It is the same compass Cammenga has been supplying to the us military except that the self-luminous tritium has been replaced with phosphorescent paint. Equipped with a magnifying lens, sight wire, and dial graduations in both degrees and MILS to ensure accurate readings. The copper Induction damping system slow the rotation of the magnet without the use of liquids. Built to last with an aluminum frame and waterproof housing. The Cammenga compass is Depended on by Fighting Forces, Government agencies, and adventurous outdoor enthusiasts around the world. Features - luminosity: phosphorescent - jewel bearing: sapphire - rotating bezel: bi-directional - climate capacity: -50 F to +150 F - frame materials: cast aluminum - waterproof: yes - accuracy: +/- 0002 MILS - dial readings: degrees & MILS - casting: aluminum - damping process: Induction (no liquid req.) - carrying pouch: LC-1 W/belt clip included - lanyard: colors (body): olive drab
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Legal DisclaimerThis product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Top customer reviews
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Well, my story continues. After buying 2 and having the luck I had, I said to myself that I would wait before trying them again. But, with a hiking trip scheduled for Colorado in a couple of days and no compass, I cracked and bought a 3rd. I still have the first two that I bought (but will be returning). Before I sent them back, I wanted everyone to see what I am talking about. I've taken pictures of all 3 compasses to highlight the QA issues.
Lens Bracket / Index Line alignment
The first 3 photos show how lens bracket aligns to the compacts bezel when closed. The first pictures shows the most extreme of the 3. The index line is not centered in the sight groove, but rather is aligned to the left edge of the sight groove. Also notice how the Luminous Bezel indicator is not centered over the Index Line, but rather it is offset to the left. Photo #2 shows a centered index line with the sight groove. However, the luminous bezel indicator is not centered over the index line, and is offset approximately 1.5 degrees. Photo #3 is shows an index line that is slightly angled to the sight groove. Notice how the line almost touches the top left edge of the sight groove, but is centered on the bottom. I can't tell if the index line is off canter, or if the lens bracket/sight groove is off canter.
Dial Face Excess Glue
Photos 4,5,6 show the compass face of all three compasses. Photo #3 shows a nice clean compass face, where the plastic face is cleanly glued to the metal direction needle. Photos #4 and #5 show globs of glue all along the Edge of the East. While this doesn't affect the operation, it certainly is sloppy assembly in my opinion
Sight Wire / Index Line Alignment
Photos #7,8 show how well the Index Line on the face of the compass is aligned to the Sight Wire of the Case Cover. Photo #7 shows how the Index line is indexed to the left of the Sight Wire. 2 of the 3 compasses exhibited this problem. I only included one photo, since they were both the same.. Photo #3 shows a properly indexed Sight Wire and Index Line. Given that the primary use of this Compass is for taking Azimuth via Sighting, this was a problem to me. This defect introduces a couple of degrees of error into your navigation.
Now, I know this isn't a scientific review. I know that many of you will suggest that these are issues introduced through parallax, but I assure you that I made sure to counter that. I took over 50+ pictures to get these 8 pictures, and only chose pictures that represented exactly what I was seeing with my naked eye, on a level table.
I don't know what degree of precision you require in your compass. If you are comfortable with having potentially up to 4 degrees (max I measured of the 3 compasses) of error built into the compass, then buy without regret. If you require a higher degree, I highly recommend that you buy multiple compasses, and select the best one and send the rest back. Or, you could buy one and send to Cammenga's Warranty Depth and have them correct any issue that you find.
My comparisons for the Cammenga are being done against a Suunto A-30L and a Burton TrueArc 20
As someone who spends quite a bit of time in the outdoors, having a compass is a necessity when exploring unknown lands. I bought a Cammenga that a used a bit, but unfortunately I lost it. Being a fan of the lensatic design, I immediately ordered another. Immediately, after unpacking it I noticed something was wrong. The luminous bezel indicator on the bezel ring was not centered on the index line. The indicator was off about 2 degrees, resulting in the index line lining up with the right side of the luminous bezel indicator. This would obviously affect any azimuth that were taken, so after 20 minutes of looking at it I packed it back up and submitted my refund. Not willing to give up, and thinking this was a random production issue, I placed an order for another one. I received the new one 2 days later. Upon opening this new one, I was once again met with disappointment. There were two issues with this one. First, the luminous bezel indicator did line up with the index line, but only partially. The luminous indicator was slightly angled and thus the part close to the bezel edge was off center to the index line. While annoying, I figured that I could look past it. But I discovered the larger issue when I shot an azimuth. Turns out that the sight wire doesn't line up with the index line. The sight wire was off from the index by 1-1.5 degrees. For me, this wasn't acceptable. I realize that I shouldn't expect a precision instrument for $40, but I was hoping for more. I have a $15 Sunto compass that is more precise than both of these Cammengas. I know that Cammengas are popular, and my first one was awesome. But I was less than impressed with these latest ones. I thinking I'm going to try something else, and hope that Cammenga's QA department can do a better job in the future. I marked them with 3 stars because they did work, and they are built solid. But there is too much "slop" and lack of precision in the assembly for me, and there was a couple of degrees of error built into the ones I received.