To prevent external fogging you might look into applying some Rain-X, which repels most forms of condensation and moisture on glass.  Contact the manufacturer though to make sure that the Rain-X application won't affect any external coatings that optimize light transmission.


Good luck!


Casey Tucker

________________________________
From: Ohio birds <[log in to unmask]> on behalf of Hayward Chappell <[log in to unmask]>
Sent: Wednesday, July 27, 2016 11:39 AM
To: [log in to unmask]
Subject: [Ohio-birds] Binoculars fogging

OK- probably dumb question, but I think I need clarification:

I always thought "fog free" binoculars meant that the OUTSIDE of the lenses
would not fog... so I bought Nikon Monarchs 7 which, like many other decent
binocs state that they are fog free. However, when I take my binoculars out
of my air conditioned house into this heat- they immediately fog up... so I
thought that my binocular seals had been damaged and I need to send in for
repair....

BUT I have been reading sites that state that "fog free" DOES NOT refer to
outside of lens fogging up- is that true?

If so- does everybody have this problem with outside of lens fogging up no
matter how fancy binocs are and is there any way to fix it?

Seems like hear a bird I want to see- run inside and get my binoculars and
then run outside only to have them fog up and by time they clear- bird is
gone.

Woe is me

Hayward Chappell
Lawrence County

--
Hayward Chappell
766 Private Rd. 3952
Willow Wood, OH 45696

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