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Forum: Pentax DSLR Discussion
06-18-2015, 05:34 PM
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Umm, no. Have you ever used one? I suspect not. And one or two squeezes on a rubber bulb is not the same as a vacuum running. And no the nozzle should never be inside the camera body.
I honestly cannot believe we are still arguing about this. If you wish to use a vacuum please do. I do not believe it is safe and will not do so. And I am not "uncertain" I am positive it is a bad idea. I've worked on moving air systems for years and seen with my own eyes what happens when a static charge builds up. But you are welcome to your opinion.
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Forum: Pentax DSLR Discussion
06-18-2015, 04:50 PM
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LOL, it's all good.
Still got the Nikon gear I see. Any thoughts on getting the Pentax FF? I handled a D800 for a couple hours and it was too big/heavy for me to like. I'm still not sure if I'll go FF but I'm socking cash away just in case:)
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Forum: Pentax DSLR Discussion
06-18-2015, 07:58 AM
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I don't understand? I'm not arguing anything. Moving air in a plastic tube generates a static charge in the plastic. That will leap from the tube to the closest ground. I've been shocked a number of times that way. If the tube is far enough away from anything the spark will not leap, but get it too close and it will. That distance will depend on the potential charge, the humidity of the air, and the materials that make up the tube and the ground. On dust collection systems we either use a wire integrated with the tubing or string a bare copper wire with it. The wire goes to earth ground and drains the static charge. This is only for plastic or other similar materials, metal tubes are conductors and are just grounded themselves.
The OP thinks it is safe to use a vacuum to clean the inside of his camera. I don't think it is based on my experience with vacuums. His tolerance for risk in this area is greater than mine and I wish him well.
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Forum: Pentax DSLR Discussion
06-17-2015, 09:01 PM
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If you method requires a warning notice I'll pass, thank you. There are far safer methods that are just as effective. I'll continue to use those and you can use yours. :)
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Forum: Pentax DSLR Discussion
06-15-2015, 11:09 AM
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We all do things every day that have a certain amount of risk. And everyone has a different tolerance for risk of different kinds.
Your are entitled to your opinion, I just do not think using a potentially risky solution to a problem that has several other much less risky solutions is a good idea. I do not think I would feel comfortable going on a public forum and advocating something other people (with experience) tell me is dangerous and might ruin peoples' valuable cameras. YMMV.
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Forum: Pentax DSLR Discussion
06-14-2015, 07:16 PM
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I would agree with cgchang, not a good idea. The moving air on a vacuum hose generates a lot of static electricity. All it will take is one spark and your sensor will be toast. There are vacuums made for electronics and as I understand it the hoses are made of material that does not generate static electricity, at least the good ones, so if you are using something like that you should be safe. Your procedure as described is probably safe as long as you keep the hose far enough away. But much too risky for me, how far away is far enough?
I have done work with industrial dust collection systems and we always ran wires to earth ground with the collection tubing because of the huge amount of static electricity generated. Much more than a home vacuum of course but I've gotten shocked enough to respect and safely ground anything moving air. YMMV of course, but I'll stick with my rocket blower.
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