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brucepiano
sage
Reged: 12/02/07
Loc: New England
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focusing knob in cold weather
#5026325 - 01/19/12 08:35 AM
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In the cold weather - below 20F, I find that the focusing knob on my Orion Vista binoculars is difficult to move.
Suggestions? In normal temperatures it moves easily.
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EdZ
Professor EdZ
Reged: 02/15/02
Loc: Cumberland, R I , USA42N71.4W
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Re: focusing knob in cold weather
[Re: brucepiano]
#5026346 - 01/19/12 08:52 AM
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I had a 20x80 binocular quite a few years ago that when used in 10° cold temps, it took two hands to turn the focus knob. Fixing would require disasembly of the shaft are regrease with a better lubricant.
edz
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Binojunky
Carpal Tunnel
Reged: 12/25/10
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Re: focusing knob in cold weather
[Re: EdZ]
#5026384 - 01/19/12 09:22 AM
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Not an uncommon problem, also happens with scope focusers as well, 20F , thats warm compared with the temps I,m seeing here in South Ontario,as stated by edz no quick fix, if regreased with a lighter lube you may find in warm weather it moves too easy or grease starts getting everywhere, Dave.
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brucepiano
sage
Reged: 12/02/07
Loc: New England
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Re: focusing knob in cold weather
[Re: EdZ]
#5026445 - 01/19/12 10:10 AM
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Would a hand warmer temporarily loosen the focusing knob?
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hallelujah
Post Laureate
Reged: 07/14/06
Loc: Colorado Rocky Mountains
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Re: focusing knob in cold weather
[Re: brucepiano]
#5026504 - 01/19/12 10:36 AM
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Quote:
In the cold weather - below 20F, I find that the focusing knob on my Orion Vista binoculars is difficult to move.
Suggestions? In normal temperatures it moves easily.
Would it be practical to keep it inside your coat? 
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brucepiano
sage
Reged: 12/02/07
Loc: New England
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Re: focusing knob in cold weather
[Re: hallelujah]
#5026572 - 01/19/12 11:09 AM
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I forgot about that option. I may try it.
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