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 Post subject: Spotting Scope Problem
PostPosted: Wed Dec 05, 2018 9:35 am 
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Joined: Mon Mar 11, 2013 6:02 am
Posts: 7531
Location: East Coast
Has anyone seen this before?
It's on the inside of the lenses surface.


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 Post subject: Re: Spotting Scope Problem
PostPosted: Wed Dec 05, 2018 2:29 pm 

Joined: Mon Feb 20, 2017 12:42 pm
Posts: 197
Location: MI
Yup - on an old B&L spotting scope. Had to send the eyepiece to Bushnell and they cleaned and re-sealed it for free.


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 Post subject: Re: Spotting Scope Problem
PostPosted: Wed Dec 05, 2018 4:07 pm 
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Location: East Coast
Nimrod84 wrote:
Yup - on an old B&L spotting scope. Had to send the eyepiece to Bushnell and they cleaned and re-sealed it for free.
Did they say what it was?
I'll have to send the whole scope back but that's not a problem just curious what it is.


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 Post subject: Re: Spotting Scope Problem
PostPosted: Wed Dec 05, 2018 5:52 pm 

Joined: Tue Aug 16, 2011 2:13 pm
Posts: 1587
Location: center of Pa
I've read scopes are coated inside with something sticky , to catch debris so it doesn't float around and get on a lens . I wonder if this is the sticky stuff ?


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 Post subject: Re: Spotting Scope Problem
PostPosted: Wed Dec 05, 2018 8:39 pm 
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Location: East Coast
jimbires wrote:
I've read scopes are coated inside with something sticky , to catch debris so it doesn't float around and get on a lens . I wonder if this is the sticky stuff ?
Good question don't know. There is a very sticky lube that has seeped out from around the focus barrel so I guess it could be.
This scope was made in the 1990's so it's hard to tell what it is. I've been told it was fungus on another web sight.
It's going to get boxed up and sent to KS for repairs since it is still under warranty.


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 Post subject: Re: Spotting Scope Problem
PostPosted: Thu Dec 06, 2018 10:14 am 

Joined: Mon Feb 20, 2017 12:42 pm
Posts: 197
Location: MI
TD,

They didn't state what it was, I figured it was fungi / mold or a plasticized coating was "burned" or otherwise damaged by heat. For the coating to be "burned" it would need to be focused on the sun or a reflection for an extended period of time for it to possibly heat-up enough.

If they tell you what it is, please post back and let us know.


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 Post subject: Re: Spotting Scope Problem
PostPosted: Thu Dec 06, 2018 10:40 am 
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Joined: Mon Mar 11, 2013 6:02 am
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Location: East Coast
Nimrod84 I'll try and remember to do that.
Sounds like a sun shade would solve the problem of the coating getting burned and might be a good investment.


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 Post subject: Re: Spotting Scope Problem
PostPosted: Thu Dec 06, 2018 11:00 am 

Joined: Mon Feb 20, 2017 12:42 pm
Posts: 197
Location: MI
Sunshade can definitely help. It really depends on how the lenses are protected, some use a sticky coating like Jimbires mentioned while others use a plasticized coating or lenses that can melt / distort if the conditions are wrong. I am sure others methods are used that I haven't an inkling that they exist.


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 Post subject: Re: Spotting Scope Problem
PostPosted: Thu Dec 06, 2018 1:10 pm 
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Location: East Coast
Since this was a bottom level ($150) spotting scope I'm sure it didn't have the top quality lenses coatings.
Since it has long been discontinued I'm also hoping they just replace the lenses with a newer one with better coatings, clean, Fog proof,waterproof and reseal it .


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