I believe that refers to internal fogging only.  You cannot prevent external condensation in such conditions.  Best bet is to shut off the AC.

Jon Cefus
Carroll Co.

Sent from my iPhone

> On Jul 27, 2016, at 11:39 AM, Hayward Chappell <[log in to unmask]> wrote:
> 
> 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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