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07-28-2014, 08:53 AM   #1
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How to clean the 18-135 WR?

Hi folks,

My lens came back from the beach with a bit of sand on it. I used the rocket blaster to dislodge any visible grains...I was thinking about lightly spraying the lens with an atomizer full of distilled water. Thoughts? Anybody ever done this before?

07-28-2014, 09:08 AM   #2
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I typically just put it under faucet while attached to my K5/K3 using GENTLE water flow...
07-28-2014, 09:58 AM   #3
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QuoteOriginally posted by ruggiex Quote
I typically just put it under faucet while attached to my K5/K3 using GENTLE water flow...
Could you not do this with the rear cap on? The mount seal is on the lens, anyway.
07-28-2014, 10:08 AM   #4
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The caps are not of WR standards and don't even cover the sealing ring on my lenses.

07-28-2014, 10:30 AM - 1 Like   #5
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QuoteOriginally posted by VisualDarkness Quote
The caps are not of WR standards and don't even cover the sealing ring on my lenses.
These are worth investing in, if only to keep dust off.
OP/TECH USA Lens Mount Cap
07-28-2014, 02:17 PM   #6
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I had some dried chlorine on my front element from a trip to a water park in Legoland two weeks ago. After blowing off any big chunks of dirt with a Rocket Blower and ever so gently dusting off the front element with a Lenspen brush, I used Purosol with a fresh cloth to clean off any "stains". Then I used the carbon end of the Lenspen to get the edges of the lens element. Be gentle. Don't apply any unnecessary force. If there is a piece of grit that you don't see then you'll only discover it after you've made a scratch in the coatings. Granted, the coatings are pretty strong but they are thin. Why stress them out any more than necessary?

I did all of this with the lens mounted to my K-30. That's a WR way of protecting the rear element.

@narual - Nice find! I think I will invest in a WR cap like that!
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