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11-26-2013, 11:34 AM   #1
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Advice Required

Hi,

I am planing to go to a Color Run (that race where people is cover with color dust), and I have seen some comments about problems that happen to most of cameras, I am wondering if taking my weatherproof K5 and a 18-55 WR lens will work, or I should avoid it. Is there any forum member that have covered any of those events with one similar setup? any advice is welcome.

Bumblebee71.

11-26-2013, 11:39 AM   #2
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Just keep the front of the lens clear whenever you can. I've heard that sometimes the dust is hard to get off the gear, but a quick rinse under a tap should do the trick with Pentax.
11-26-2013, 11:42 AM   #3
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Weather sealing won't help much, the color dust is extremely fine and will get right past the seals.

LensRentals.com - How to Ruin Your (or Our) Gear in 5 Minutes (Without Water)

They mention weather sealed lenses, likely Canon L and the higher end Nikon stuff, which should be similar in sealing quality to the DA* Pentax line, which is better than the WR kit lenses.

To have a chance of surviving you should cover it with plastic and zoom as little as possible to avoid dust getting getting sucked in along with the air.
11-26-2013, 12:01 PM   #4
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I would not go near a color run with a camera I expected to be functional after. Sealed or not.
Get a cheap p&s and assume you are going to toss it after.
Just my humble opinion.

11-26-2013, 12:25 PM   #5
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Talcum Powder is about 10uM (Micro Meter or Microns) or .0004"

Here are some other dimensions

90% of Wood smoke particles are smaller than 1 micron 0.00004
Bacteria (average) 2uM or 0.00008"
Red Blood Cell 8uM or 0.0003"
White Blood Cell 25uM 0.001"
Human Hair 70uM 0.003"
Grain of Table Salt 100uM 0.004"

Droplets - liquid particles less than 500uM

So if a camera is weather sealed for water, it likely will not stop Talc powder.
11-26-2013, 12:40 PM   #6
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Water droplet size isn't relevant - it's the water film which matters. That said, fine powders can accumulate in all sorts of recesses and may be drawn via moisture into other areas and cause issues.
11-26-2013, 12:47 PM   #7
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Thanks for your quick and wise advices, I think I won't take it, or...would I look too ridiculous if my camera is wearing an under water bag ?

:-D
11-26-2013, 12:54 PM   #8
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Won't help your lungs either ! Better stay home and watch it on the TV.

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