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Cleaning Sand from Your Binoculars

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Cleaning Sand from Your Binoculars

Postby Guest on Thu Dec 22, 2005 12:00 pm

I have a set of Nikon Lookout IV's that I frequently take with me to the beach. As a result I've gotten little bit of sand around the ocular lenses. I'm looking for a good way to get rid of it without scratching the lenses. I've also gotten a little around the hinge, diopter, and center focus wheel. It's not a lot, but I'm concerned that it will cause problems over time. Any reccomendations?

Postby on Thu Dec 22, 2005 3:18 pm


Yes, sand is the mortal enemy of a good optic and it can damage an instrument or lens in an instant. If was getting into sand on a regular basis, I would think twice about takiking along an expensive instrument. If you have a choice, go with an IF (individual eyepiece focus) model or a model with internal focusing to minimize the possibility of sand working its way into moving parts. Center focus models with external focusing parts are especially vulnerable to sand.

For sand particles on a lens, I use a soft camel hair lens brush and ever so gently brush the sand particles away. Using a lens cloth is usually a bad idea. Any pressure on the sand particles will scratch a lens. If you use a cloth at all, it should only be after you are absolutely certain all sand has been removed.

For sand particles on the body, the brush is also the method I prefer. Some people claim that compressed air is a good idea, but I have heard stories of air blowing sand even further into a mechanism.
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Cleaning Sand from Your Binoculars

Postby Guest on Thu Dec 22, 2005 11:37 pm

Thank you. I love your website.

Postby ranburr on Fri Dec 23, 2005 2:07 am

If it is inbedded sand and your bino is waterproof, dunk it in a sink of water. If your bino is not waterproof then the only real option is to blow it out with compressed air. The air route may cause some minor scratching. But, it will probably amount to less damage than what will happen if you leave sand particles to work themselves into every crevice.