Weather sealing user’s expectations

Started Feb 11, 2014 | Discussions thread
jhmos Regular Member • Posts: 213
Re: Slightly off topic! But still about water ingress.



Sea water is the real risk to DSLRs as the salt combined with the voltage in a camera can in a matter of minutes, destroy a circuit board or at least some of it. I remember when sailing alone from the south of France to Corsica at night when a rogue wave broke over the cockpit some of it passing into the boat and falling on my ghetto blaster to which I was listening to pass the time. It instantly stopped and I dismantled it within minutes (leaving the boat on auto pilot) to find a little water on one of the smaller circuit boards inside. The sea water combined with the voltage had already eaten through two of the copper tracks on the board ( in three or four minutes), I rinsed it and with a wet rag wiped the remaining interior ensuring no salt water remained, then re-soldered the tracks, reassembled it and away it went again.

Fog when near the sea can contain salt and as I stated in my last post can pass through the seals as their protection by surface tension no longer functions and re-condenses inside to stay for ever (salt will never evaporate) and even if the camera functions for a while, it's days are numbered.

Sea fog is the worst!

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Dave's clichés

What you say makes sense.

There is, however this from page 7 of the Pentax Lens Brochure:

Everywhere you go, PENTAX’s protective seals in the
WR lenses will handle rain, sea spray, humid tropical
climates, snow, sand and even dust.

People might be forgiven for taking Pentax's claim at face value.

 jhmos's gear list:jhmos's gear list
Pentax K-3 Pentax K100D Sigma 10-20mm F4-5.6 EX DC HSM Pentax smc DA* 300mm F4.0 ED (IF) SDM Sigma 70-200mm F2.8 EX DG OS HSM +10 more
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