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Why no anti-fog coating on Swarovski?

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/10/2014 at 15:19
Blackhorn View Drop Down
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   I was just about set to pull the trigger on a Swaro Z5 3.5-18X44 BT but the fact that it does not have any anti fog coating just keeps gnawing at me. I can't understand the logic behind the company's decision not to coat these lenses. 
   Where I hunt inclement weather is the norm rather than the exception, rain, snow and/or sleet and temperatures oscillating around the freezing mark are to be expected. The clearest optical glass in the world isn't worth much if you can't see through it because it is fogged up. Sure you could wipe it off, but in a hunting situation you don't always have those precious extra seconds to spare and extra movement always has the potential to alert the game you're targeting. 
    I've been using a Bushnell elite on my muzzleloader the last couple of seasons and the rainguard coating has made a huge difference. So much so in fact, that I wasn't even carrying the huge wad of Kleenex in my pocket anymore which had become a necessity with the uncoated Leupold scopes I'd been using until then. If busnell could do it on a $300. scope, how much could it add to the price of a swarovski?
    A tech. I spoke with at swarovski suggested using Parkers Perfect anti fog solution on the lenses. There have been mixed reviews on the product and so I was wondering if anyone here had any experience using it?
    I am now seriously considering getting a Zeiss Conquest HD5 3-15X44 with locking turrets instead. The anti fog coating is supposed to be really good. Yes the glass is not in the same league as the Z5, but will the swaro give me that much more of an edge in the field- at ranges under 400 yards and during legal shooting times? 
    What I need the most is for it to help me get the job done in any and all hunting situations and climatic conditions I might encounter. Also, I figure getting a custom turret ring from Kenton Industries would pretty much equal the ballistic turret option on the swaro. Right?Poker
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/10/2014 at 15:47
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None of them have an anti fog coating.  Some have a coating like Bushnell rainguard or Zeiss Lotutec, but they do not stop fog.  They help moisture bead up lenses instead of puddling.  They also help with dust and greasy crap not sticking to the glass as well, making them easier to clean. 

Even the rainguard and LotuTec will fog up if you breath on them or take them from the inside of your warm jacket out into cold temps.  I have a pair of Zeiss FL binos and I have fogged them up before by doing just that.  But when I get them wet, it beads up nice and falls away.

Here is Zeiss's site explaining how it works.
http://vision.zeiss.com/products/en_de/coatings---coloured-lenses/coatings/lotutec.html#design
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/10/2014 at 15:56
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How about the Parker's Perfect?  
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/11/2014 at 07:53
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+1 on the Parker's Perfect.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/11/2014 at 14:10
stickbow46 View Drop Down
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If I remember correctly from my SLR days the best thing to do when going from 1 extreme temp to another is put a plastic bag loosely around the optic & the plastic will take the condensation not the glass.Maybe Ilya can chime in on this.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/12/2014 at 08:23
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Has anyone used Rain-X on their scope lenses? Is it safe to use?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/12/2014 at 09:41
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No, it is not safe for multi-coated optics.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/12/2014 at 12:06
Skylar McMahon View Drop Down
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Originally posted by tbob38 tbob38 wrote:

Has anyone used Rain-X on their scope lenses? Is it safe to use?
 
No, Rain-X is not safe for optics with mulit-coated lenses.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/12/2014 at 12:44
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Thank you, gents.
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