How waterproof is the ES80? (1 Viewer)

dafi said:

I think mine is the Mk1 so is only rain proof (not monsoon proof).

I wouldnt worry too much about it Guizotia,mine gets rained on a fair bit and i am quite confident in its shower proofness.

In the unlikly event of it ever foging its easy to dry out although it takes a wee bit of time. The one thing i would add tho if you have to dry it out is dont rush it and to place a lint free cloth over the eye piece hole. The condensation will pass through it to the air and the cloth will prevent dust from entering the scope body.

Like i said tho i wouldnt worry too much about it.

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Thanks - no I won't worry if it gets rained on, but I'll still get a cover to throw over it. It's quite big item to send back for a fix.

Guizotia said:

Well see my quote from Opticron above - they state the scope is "100% nitrogen waterproof" in the literature but clarify above that it is not submersible.

I only want to avoid the disruption of having to get the scope fixed if it did get water in it. If it was claimed as submersible I would have greater confidence with it in the rain, but if it is only guaranteed to be waterproof in the rain, I have a lower level of confidence in it.

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The Opticron quote above only makes sense if you assume ( as I do ) that there are TWO ways of 100% nitrogen waterproofing:

1)

Nitrogen purged ; this means nitrogen is used to drive out all traces of vapor.
Dry air with 0 % water is then sealed, which would make the scope fogproof and waterproof but not submersible.

2)

Nitrogen filled ; this means nitrogen gas fills up the interior to a + 0,5 atmosphere overpressure, with heavier sealing, which would make the scope fogproof, waterproof AND submersible.

This is how I see it; I just read on one of the links above quoting JIS waterproof standards, that my Zeiss Diascope is only JIS 6, so not submersible. I used it for nearly four years now in heavy downpours as well as extended periods of torrential rain ( without a stay-on case ) and it never ever fogged or let in water. So the JIS 6 level has been sufficiently proven to be correct.

Kind regards,

Ronald