What's new
New posts
New media
New media comments
New profile posts
New review items
Latest activity
Forums
New posts
Search forums
Gallery
New media
New comments
Search media
Reviews
New items
Latest content
Latest reviews
Latest questions
Brands
Search reviews
Opus
Birds & Bird Song
Locations
Resources
Contribute
Recent changes
Blogs
Members
Current visitors
New profile posts
Search profile posts
ZEISS
ZEISS Nature Observation
The Most Important Optical Parameters
Innovative Technologies
Conservation Projects
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
BirdForum is the net's largest birding community dedicated to wild birds and birding, and is
absolutely FREE
!
Register for an account
to take part in lively discussions in the forum, post your pictures in the gallery and more.
Forums
Binoculars & Spotting Scopes
Binoculars
Waterproof, sealed Porros,?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="OPTIC_NUT" data-source="post: 3307723" data-attributes="member: 121951"><p>Inert gas leaves in a year or two, as they found out</p><p>with argon in windows. They solder metal gaskets on windows,</p><p>but you can't do that to binoculars.</p><p></p><p>To add insult to injury, all the O-Rings</p><p>get 'stiction' with age. Most roofs have little</p><p>sealed pushrods running a sled for the focuser lens.</p><p>That's not bad. The O-Rings on sealed Porros are</p><p>more problematic. </p><p></p><p>The old IFs handle things pretty well...</p><p>the plumber's putty under the cover plate</p><p>edges 'breaths' moisture out fairly well.</p><p>I see old IFs with mold, but quite rarely.</p><p></p><p>Having flushing valves for sealed binocs would be nice...</p><p>a dose of dry air to sweep what might have gotten</p><p>in via silicone grease permeability, under the gaskets.</p><p>Every few months, or at the end of summer.</p><p></p><p>Bagging binocs when they are cooler than the air</p><p>(going either in or out) is good for even waterproof binoculars.</p></blockquote><p></p>
[QUOTE="OPTIC_NUT, post: 3307723, member: 121951"] Inert gas leaves in a year or two, as they found out with argon in windows. They solder metal gaskets on windows, but you can't do that to binoculars. To add insult to injury, all the O-Rings get 'stiction' with age. Most roofs have little sealed pushrods running a sled for the focuser lens. That's not bad. The O-Rings on sealed Porros are more problematic. The old IFs handle things pretty well... the plumber's putty under the cover plate edges 'breaths' moisture out fairly well. I see old IFs with mold, but quite rarely. Having flushing valves for sealed binocs would be nice... a dose of dry air to sweep what might have gotten in via silicone grease permeability, under the gaskets. Every few months, or at the end of summer. Bagging binocs when they are cooler than the air (going either in or out) is good for even waterproof binoculars. [/QUOTE]
Insert quotes...
Verification
Post reply
Forums
Binoculars & Spotting Scopes
Binoculars
Waterproof, sealed Porros,?
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more...
Top
