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I just received a scope that I purchased used and the lenses are extremely dirty. What do you all recommend for “cleaning” without damaging the coating????
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I'd take soft bristle brush and dust the lens while applying a little air. After that I'd use good ol soap and water! Ive cleaned mine this way many times.


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Originally Posted by Highoctane

I'd take soft bristle brush and dust the lens while applying a little air. After that I'd use good ol soap and water! Ive cleaned mine this way many times.



I'd use the brush first for sure, then good old fashioned Windex and a COTTON cloth...no paper products!


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I would stay away from canned air. Brush and a micro fiber cloth. I like a mild soap or Invisible Glass that is used for autos.


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This is just my opinion, but I'd use the kitchen faucet first to flush/float that crud off. Just a modest flow of water and shake it off, then once more again, then finish with a lens wipe.

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Compressed air from one of those office cans to get the dust from the edges of the glass. Warm tap water via the faucet. A drop of dish soap. Move around with clean finger. Rinse all soap off very throughly. Wipe with microfiber lense cloth to dry.

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Originally Posted by woods_walker
This is just my opinion, but I'd use the kitchen faucet first to flush/float that crud off. Just a modest flow of water and shake it off, then once more again, then finish with a lens wipe.

I’ve had a similar issue and did just this. Warm water, mild flow.

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Originally Posted by woods_walker
This is just my opinion, but I'd use the kitchen faucet first to flush/float that crud off. Just a modest flow of water and shake it off, then once more again, then finish with a lens wipe.
When I recently picked up a new pair of prescription glasses from Lens Crafters, that is exactly what the rep told me to do to clean the lenses.

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Covesjeep: I have several air bulb lense brushes and I would get one use it from above the lense surface and air puff the big pieces off of the lenses.
Then obtain real "lense tissue" (I am almost out of my beloved "Kodak" lense tissues!) and use some Zeiss lense cleaning solution (sparingly on the first cleansing. Then using very little Zeiss solution and a clean lense tissue clean the lense again - repeat for other lense.
I use this method on all new to me used Rifle scopes and spotting scope lenses.
Good luck with the new scope - it is obvious the previous owner did not use lense protection caps.
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Amazing how lens coatings have become so tender over the past few decades--compared to back when they were actually were kinda soft.


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Dishwasher has worked well for me. Rinse aid helps.

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I normally use a soft brush/air but I would start with some running water on that one

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Originally Posted by JJF
Originally Posted by woods_walker
This is just my opinion, but I'd use the kitchen faucet first to flush/float that crud off. Just a modest flow of water and shake it off, then once more again, then finish with a lens wipe.
When I recently picked up a new pair of prescription glasses from Lens Crafters, that is exactly what the rep told me to do to clean the lenses.


People saying use a brush first ? yeah - that's how I always cleaned my new cars too - brush off the dirt then wash it .

Soak the lens in warm water with a mild hand/face soap lightly wash away the dirt with the microfiber cloth , then dry the lens lightly with microfiber cloth . Skip the brush and cotton .


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The last scope cleaning kit i'd use would be the leupold lens pen BS .


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Originally Posted by Mule Deer
Amazing how lens coatings have become so tender over the past few decades--compared to back when they were actually were kinda soft.


It has long been established that lenses are the most delicate objects in all the universe. There is but one true way to clean them properly, but it has been lost over the ages. The only thing to do when lenses become dirty (as when a dust mote settles on one) is to replace the scope.


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Isopropyl alcohol. Nothing better.

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The pictures in the OP appear to be of damage to the coating due to water droplets left on the lens. Water can damage some coatings if left on the lens for a long time. Much as I hate to agree with anyone from Katy :-), isopropyl alcohol is the best solution to clean lenses using a lens tissue paper and then wiping with a clean microfiber cloth. If there is dust or grime on the lens, a little bulb blower thing is a great thing to use first to remove the stuff.

Now, don't panic and be afraid of rain or water or anything. Just don't put away the riflescope wet.

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A lot depends on whether you have time to remove from rifle... but distilled water in a spray bottle, a weak solution of cascade dishwasher soap in a spray bottle, 1/2" sable paint brush, and rinse with same distilled water, then air dry.


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I should have added that I seriously doubt the spots on the lenses can be removed.

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Maybe covejeepsxj should check in and give us an update?

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