Results 1 to 8 of 8
Like Tree26Likes
  • 14 Post By John Baars
  • 1 Post By Gabby76
  • 2 Post By helicon64
  • 2 Post By Voyageur
  • 2 Post By burris
  • 2 Post By Werthonghen
  • 1 Post By burris
  • 2 Post By Aratus

Thread: Waterproof: Is 30 minutes at 8 feet really waterproof?

  1. #1
    John Baars's Avatar
    John Baars is offline Bronze Supporter
    Points: 17,982, Level: 92
    Level completed: 71%, Points required for next Level: 118
    Overall activity: 51.0%
    Achievements:
    20 Posts Achievement!2 Posts AchievementGallery Achievement!Album Achievement!5 Threads Achievement!
    Join Date
    Sep 2017
    Location
    Schiedam, Netherlands
    Posts
    1,398
    Points
    17,982
    Level
    92
    Thanks
    1,396
    Thanked 1,233x 720 Posts
    Blog Entries
    7

    Default Waterproof: Is 30 minutes at 8 feet really waterproof?



    As a result of this thread 300mm triplet I came across this article.
    A nice impression and example of the meaning "really waterproof" : http://www.binoculars-cinecollectors...binoculars.pdf
    Some up to 100 m.! Amazing!

    These are common standards for binoculars and radio's: https://www.bestbinocularsreviews.co...culars-06/#jis

    These standards are known too: IPX Ratings Described | Just{elation}
    "30 minutes at 8 feet" is an example of IPX8 according to these standards.
    From the bottom of your pool you will need IPX8, along with a scuba-diving set.

    But, why bother when you can comfortably observe the stars above from a chair next to the pool? There were only some occasions on which I left my binoculars for hours on a table next to me, the instrument fogged up. Inside too. Those were cold and damp nights. Most of the time I keep my handheld bino's under my coat, where they will stay warm enough. A complete bino session ( on a tripod) will be another story. Considering the weather conditions under which I myself use just bino's, the session won't take long enough to fog the instrument up.

    On three occasions I had to deal with water in the instrument.
    On the first I left my JIS1 12X50 bino in the garden at night. Forgot all about it. The next day I found out it had started raining later that night. Water inside, dried for some days, but I had to open the instrument to remove drying stains. On the other I was testing a 20X50 mono for a certain Dutch company. "Waterproof JIS7 " the specs said. As a good tester I submerged it in a bucket of water for some seconds. It turned out not te be waterproof at all! The two screws that held the tripod adapter at the body were not sealed well enough.... The company was not mad at me, on the contrary.......

    And then there was of course the occasion on which my C8 functioned as a rain gauge, when I had a coffee break inside. Lots of water in the telescope! It all ended well. After dissembling, drying and cleaning the rest of the night.
    Telescopes in Schiedam : SW 150 F/5 Achromat, SW Evostar 120ED F/7.5, Vixen 102ED F/9, OMC140 maksutov F/14.3, SW 102MAK F/13 on Vixen GPDX.
    Binoculars: AusJena 10X50 Jenoptem, Swarovski Habicht 7X42, Celestron Skymaster 15X70, Swift Observation 20X80.
    Astronomical Rijswijk observatory telescopes: Astro-Physics Starfire 130 f/8 on NEQ6, 6 inch Newton on GP, C8 on NEQ6, Meade 14 inch SCT on EQ8, Lunt.
    Amateur since 1970.

  2. The Following 7 Users Say Thank You to John Baars For This Useful Post:

    burris (03-09-2019),DaltonSkyGazer (03-09-2019),helicon64 (03-08-2019),ic_1101 (03-29-2019),j.gardavsky (03-08-2019),kanadalainen (03-14-2019),Voyageur (03-08-2019)

  3. #2
    Gabby76's Avatar
    Gabby76 is online now Super Moderator
    Points: 83,501, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 99.8%
    Achievements:
    2 Posts Achievement20 Posts Achievement!Gallery Achievement!Album Achievement!50 Posts Achievement!
    Awards:
    Activity & Post & Thread Master
    Join Date
    Jan 2016
    Location
    Slovakia
    Posts
    19,392
    Points
    83,501
    Level
    100
    Thanks
    3,704
    Thanked 6,017x 5,054 Posts
    Blog Entries
    4

    Default Re: Waterproof: Is 30 minutes at 8 feet really waterproof?

    A very interesting read John, thank you for sharing it.
    John Baars likes this.
    Refractors: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNG 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen SD115s f/7.7
    Mounts: Celestron SLT w/ pier mod & EQ-3 tripod, Celestron hypertuned CG-5 w/ tracking motor & Argo Navis, Manfrotto 028B w/ Stellarvue M2C, Manfrotto 055PRO w/ 128RC, TAL-1 HD EQ, Vixen SXP w/ HAL-130 SXG & half pier
    Diagonals: 2" Astro-Physics MaxBright, 2" Zeiss/ Baader prism, 2" Baader Herschel Wedge (Photo Version), 2"
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Amici prism, 2" Stellarvue Dielectric, 2" TeleVue Everbrite
    Eyepieces: A-Z

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

    The weakest link in the optical chain is the large nut located directly behind the
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    / camera. - Gabrielle

    Ya gotta keep this Apo/
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    thing in some balance of perspective. Apos are awesome, but long focus Achros aren't that far behind them - Siriusandthepup (CN)

    Refractors kick arse precisely because they don't hide behind excuses. That is, they have no obstructions to hide behind. - Jon Isaacs (CN)

  4. The Following User Says Thank You to Gabby76 For This Useful Post:

    John Baars (03-08-2019)

  5. #3
    helicon64's Avatar
    helicon64 is offline HYPER GIANT
    Points: 134,833, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 3.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!Ghost Achievement! Averaging 5+ posts a day!200+ Posts Achievement!
    Awards:
    Most Friends Award!
    Join Date
    Jul 2012
    Location
    Berkeley, CA
    Posts
    22,662
    Points
    134,833
    Level
    100
    Thanks
    23,733
    Thanked 6,969x 5,426 Posts

    Default Re: Waterproof: Is 30 minutes at 8 feet really waterproof?

    I would never have thought of this. Pretty important, though.
    John Baars and burris like this.
    Michael
    Obsession 18" f/4.2, Zhumell Z10 f/4.9, ES AR 152 refractor f/6.5, Celestron Skymaster 15x70's , Bushnell 10x50's
    9x50mm RACI finder, Telrad, Rigel Quickfinder, 30mm Erfle, 9mm Plossl, and full line of ES eyepieces
    Imagination is more important than knowledge. Knowledge is Limited. Imagination Circles the World... A. Einstein


  6. The Following User Says Thank You to helicon64 For This Useful Post:

    John Baars (03-08-2019)

  7. #4
    Voyageur's Avatar
    Voyageur is offline SUPER GIANT
    Points: 8,440, Level: 63
    Level completed: 97%, Points required for next Level: 10
    Overall activity: 25.0%
    Achievements:
    2 Posts AchievementGot three Friends20 Posts Achievement!50 Posts Achievement!5 Threads Achievement!
    Join Date
    Jul 2016
    Location
    Leelanau County, Michigan (April-Oct); Barra de Navidad, MX (Nov-March)
    Posts
    1,370
    Points
    8,440
    Level
    63
    Thanks
    354
    Thanked 526x 342 Posts

    Default Re: Waterproof: Is 30 minutes at 8 feet really waterproof?

    A valuable perspective on something I had not thought about before. Thank you, John, for a good and useful read.
    John Baars and burris like this.
    Mary


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    :
    Vixen VMC200L, D=200mm, F=1950, f/9.75; Televue 2" Everbright diagonal. Coronado PST; AstroTech EDT 80mm, F=480, f/6. Mounts: Vixen SXW/Starbook (original); Stellarvue M2C alt-az. Eyepieces: Televue: 55mm Plossl, 22mm Panoptic, 17.3mm Delos, 13mm Nagler, c. 1980, 11mm Plossl, 7mm Nagler; Meade 15mm Super Plossl; VERNONSCOPE 2.4X
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    . Binoculars: Leica 8x32 Trinovids, circa 1997;
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Megaview 20x80, Orion Paragon Plus mount.

  8. The Following User Says Thank You to Voyageur For This Useful Post:

    John Baars (03-08-2019)

  9. #5
    burris's Avatar
    burris is offline SUPER GIANT
    Points: 5,598, Level: 51
    Level completed: 24%, Points required for next Level: 152
    Overall activity: 7.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!Ghost Achievement! Averaging 5+ posts a day!
    Join Date
    Aug 2018
    Location
    Southern California
    Posts
    1,368
    Points
    5,598
    Level
    51
    Thanks
    321
    Thanked 217x 201 Posts

    Default Re: Waterproof: Is 30 minutes at 8 feet really waterproof?

    The old optical technician that mentored me for the time I was in the Navy (civilian) optical shop( binos and periscopes) used to say that the only thing truly waterproof was a Ducks Butt! After we collimated the binoculars we did a nitrogen purge. This was only so they didn't fog up due to temperature fluctuations, not to make them water proof. I guess water resistant would be a better term. I have used my Celestron 8x56 "waterproof" binos many times while sitting in my hot tub with no problem. but then again, I didn't submerge them! Lol! Bill
    j.gardavsky and John Baars like this.
    Burris

  10. The Following User Says Thank You to burris For This Useful Post:

    John Baars (03-09-2019)

  11. #6
    Werthonghen's Avatar
    Werthonghen is offline Banned
    Points: 60, Level: 1
    Level completed: 20%, Points required for next Level: 40
    Overall activity: 4.0%
    Achievements:
    2 Posts Achievement
    Join Date
    Mar 2019
    Location
    Ukraine
    Posts
    6
    Points
    60
    Level
    1
    Thanks
    0
    Thanked 1 Time in 1 Post

    Default Re: Waterproof: Is 30 minutes at 8 feet really waterproof?

    When it comes to harsh weather conditions I can rely on my Wingspan Optics Thunderbird 8X42. it comes with a waterproof and fog proof design so I can stay calm in any situation. I got it for 239$ but there are different even cheaper options. Noticed some good reviews on https://opticzoo.com/best-binocular-under-300-reviews/
    John Baars and burris like this.

  12. The Following User Says Thank You to Werthonghen For This Useful Post:

    John Baars (05-16-2019)

  13. #7
    burris's Avatar
    burris is offline SUPER GIANT
    Points: 5,598, Level: 51
    Level completed: 24%, Points required for next Level: 152
    Overall activity: 7.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!Ghost Achievement! Averaging 5+ posts a day!
    Join Date
    Aug 2018
    Location
    Southern California
    Posts
    1,368
    Points
    5,598
    Level
    51
    Thanks
    321
    Thanked 217x 201 Posts

    Default Re: Waterproof: Is 30 minutes at 8 feet really waterproof?

    Quote Originally Posted by Werthonghen View Post
    When it comes to harsh weather conditions I can rely on my Wingspan Optics Thunderbird 8X42. it comes with a waterproof and fog proof design so I can stay calm in any situation. I got it for 239$ but there are different even cheaper options. Noticed some good reviews on https://opticzoo.com/best-binocular-under-300-reviews/
    Love the eye relief! Bill
    John Baars likes this.
    Burris

  14. The Following User Says Thank You to burris For This Useful Post:

    John Baars (05-16-2019)

  15. #8
    Aratus's Avatar
    Aratus is offline Main Sequence
    Points: 277, Level: 5
    Level completed: 54%, Points required for next Level: 23
    Overall activity: 29.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!5 Threads Achievement!
    Join Date
    May 2019
    Location
    East Lincolnshire UK
    Posts
    58
    Points
    277
    Level
    5
    Thanks
    0
    Thanked 8x 7 Posts

    Default Re: Waterproof: Is 30 minutes at 8 feet really waterproof?

    I learned something new - many thanks. I've had the 'telescope as rain guage' experience too. Not something I want to repeat.
    John Baars and burris like this.

  16. The Following User Says Thank You to Aratus For This Useful Post:

    John Baars (05-16-2019)

 

 

Similar Threads

  1. Oberwerk: Waterproof or not
    By hEryrg in forum Binoculars Forum
    Replies: 9
    Last Post: 01-16-2018, 01:38 PM
  2. Waterproof hard cases
    By smeyer8015 in forum Telescope Accessories Forum
    Replies: 5
    Last Post: 08-05-2015, 02:17 AM
  3. Waterproof or Not?
    By jrkirkham in forum Binoculars Forum
    Replies: 1
    Last Post: 08-06-2010, 03:11 AM
  4. Waterproof-Cover-Friends
    By Seal in forum Amateur Astronomy Forum
    Replies: 0
    Last Post: 12-14-2006, 07:18 AM
  5. Waterproof EPs?
    By darin@darinboville.com in forum Amateur Astronomy Forum
    Replies: 3
    Last Post: 11-20-2005, 10:09 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin® Version 4.2.0
Powered by vBulletin®
All times are GMT. The time now is 09:18 AM.