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Swift

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Swift

Postby okiejaco on Sun Feb 26, 2012 8:16 pm

You helped me pick out some Swift Audubon binos a few years ago. The lenses are getting a little scratched. I was wondering if they can be replaced or polished out? It's mostly the ones closest to your eyes when you are looking through them. Thanks



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Re: Swift

Postby Jne_K on Mon Feb 27, 2012 8:42 am

Hi

No, not something that you can normally repair and any attempt to polish will do more harm than good. Returning it to Swift for a fix, even if they would do it, would be cost prohibitive. For what Swift would likely charge to replace lenses, you could probably buy another binocular.

What you are seeing is most likely scratching to the coatings, rather than the glass itself. If the scratching is not visible when you look through the binocular, it is most likely in the coatings. If it is visible when looking through the binoculars, then you are probably down into the glass. Either way, any polishing will only remove more of the coatings and make things worse.

Scratching the coatings is a common occurrence when you get a little too ambitious with the cleaning. Only clean when things get so dirty as to affect performance and that really does take a lot of dirt. Then be sure to use a lens brush to sweep away any grit BEFORE you break out the lens cloth. It's not so much the glass that is fragile as it is the lens coatings.

The good news is that scratches to the coatings, even to the glass itself, will not affect performance. A scratch that you can see because it's down in the glass may be annoying, but better to ignore it rather than make things worse.
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