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  1. #1

    Remove fog on inside of scope

    I know the best answer is "buy a better scope" which I intend to do after the season. For now, looking for a DYI short-term fix.

    Hunted in snow/rain mix Sunday and some moisture must have got inside the scope because now it has a haze/fog inside. Is there any way to get inside of the scope to clean the fog off without affecting the adjustments?

    Thank you.

  2. #2
    MGO Member Moleman-'s Avatar
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    Had that happen to a pair of early 1990's redfield binoculars about 6 years ago. Took them apart, heated with a hair dryer and set them in a tupperware container with uncooked rice for a couple days until the haze was gone and I felt comfortable that the excess water had evaporated. Put paper towels down so the rice didn't get in the binoculars. Put back together with a little o-ring grease and they're still in use and haven't fogged up again. If you can take the scope off you could do the same thing with the rear eyepiece screwed off. If not, perhaps with the eyepiece removed you could heat it up with a hair dryer until the scope was nice and warm. Then screw the eyepice back on with a tiny bit of silicone o-ring grease on the threads to help seal it. You can get silicone o-ring grease in the plumbing section of the hardware store.

  3. #3
    No offense moleman a number of tech sights and science DIY pages I follow have suggested the rice thing does not work, or not worth the little effort it takes, includes use for cell phones watches etc.

    I like the rest of the take it apart, grease it etc.

    Or if its cheap enough, buy another cheapo with a good warranty, or ask around for a used old 1990s bushnell or something off ebay fb marketplace you can get for 10-15 bucks, not very good, barely good, but serviceable.

    OP Sometimes you just need to know when to throw in the towel.

  4. #4
    MGO Member Moleman-'s Avatar
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    No offense taken dirtmcgirt76239. I thought rice as a desiccant was bs the first time my wife jumped in our pool with her iphone. Even teased her not to forget the soy sauce. But it went from dead to working after a couple days in the rice. After a day it worked but the screen still looked funky, another day and it was fine. We have a pool, hot tub, two teenage daughters that like to take hour long tubs while watching movies on their phone and a boy that like to kayak fish and often forgets his phone is in his pocket. It's worked so far on all of their Iphones at least once, the Ipad once and my binoculars. There are much better desiccants out there that will work quicker, but not everyone has them laying around.

  5. #5
    MGO Member Ol` Joe's Avatar
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    Just a thought, but no manufacture was named and the scope might be covered against fogging by the warranty yet. Burris, Leopold, Vortex, Nikon etc. all have lifetime/limited lifetime guarantees. A good nitrogen purge beats a bowl of rice IMHO any day, especially if free.
    "Saepe errans, numquam dubitans --Frequently in error, never in doubt".

    The trouble with the Internet is that it's replacing masturbation as a leisure activity. ~Patrick Murray

  6. #6
    Account Closed Forum User
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    Leave it on the heat register for a couple days.

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