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Forum: Pentax DSLR Discussion
06-20-2015, 02:45 PM
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I didn't want to gave any further comment because this discussion is going far beyond physics.
Your solution @wwortel is quite brilliant. I do understand your thoughts. But it is absolutely unnecessary in terms of ESD.
But please, do not hold/near the nozzle directly to the grill. Please use a minimum of one cm distance.
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Forum: Pentax DSLR Discussion
06-19-2015, 03:57 PM
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Forgot: Missile to rocket - simply my way of smart thinking:D!
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Forum: Pentax DSLR Discussion
06-19-2015, 03:39 PM
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I too use this combination - great! Please apologize my poor English. What acronym is RH?
I'm repairing - first cleaning old tube TVs, LED- and LCD-TVs, data projectors, vintage HiFi gear, keyboards, PCs (motherboads, graphic cards, fans), car radios, car's breaks and other hard stuff for years.
First thing: Get rid of the dust that has accumulated over years.
Inside I use a vacuum and eventually a soft brush, outside for the hard stuff ;), I use my 10bar compressor with an oil/moisture filter.
This first cleaning never did damage the patients. Maybe because - first think, then act.
Soldering and desoldering critical ICs quite is another thing. There you must be grounded.
The discussion about ESD in this case is, please apologize because I take you ESD-scaries :eek: seriously, ridiculous.
ESD is everywhere. Disembark your car under special conditions - autsch! So, don't touch your Pentax!
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Forum: Pentax DSLR Discussion
06-18-2015, 05:20 PM
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Just one last thought to @jatrax and @bossa: "Moving air in a plastic tube generates a static charge in the plastic"
That's exactly the condition when using a recommended blower. Moving air in a plastic tube.
I'm shure that you both place the blower's nozzle inside the body near the sensor. Have you ever seen or felt a discharge?
Additionally I am pretty shure that some of those missile blowers will generate a bigger blast than a reversed operating vacuum.
To be very clear: I wouldn't recommend something that will harm your camera.
The only disadvantage or potentional risk using a vacuum is that the nozzle can accidentally slip into the body.
So please let me repeat: Please keep the nozzle outside the body and make shure that it cannot slide in - under any circumstances.
And please use whatever you want and you feel comfortable with. Don't use a vacuum cleaner if you are uncertain.
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Forum: Pentax DSLR Discussion
06-17-2015, 06:02 PM
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I partially agree.
I'm sucessfully using this procedure for more than 6 years on my DSLRs (K20D and K-S1)
Phase 1 is cameras' sensor cleaning. If this fails I go to phase 2: A vacuum cleaner.
And luckily I never had to go to Phase 3 or 4: A blower or touching the sensor with adhesives for grabbing moisty dust.
It is only my experience: I onced used a blower to clean the mirror of a SLR. Mirror was clean but now there was more dust inside the viewfinder.
Please thoroughly read my advice and my warning notice in red font and you will be safe.
In case you don't feel comfortabel or your'e using a more powerful cleaner:
Just try to vacuum a plain sheet of paper from your desktop while reducing the distance to the nozzle.
The detaching distance is your critical spacing to the camera body.
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Forum: Pentax DSLR Discussion
06-15-2015, 04:25 AM
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Distance between nozzle and body is 1cm but to sensor it is about 5cm.
Both parts, camera body and VC are grounded or let me say at the same electrical level when holding them in my hands.
Therefore, in my opinion, an electrical discharge is extremly unlikely.
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Forum: Pentax DSLR Discussion
06-14-2015, 06:45 PM
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Very interesting and serious argument.
But I have never heard about this. Any proof?
BTW - I always have used a VC to clean my PC - fans from dust.
No problems so far.
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Forum: Pentax DSLR Discussion
06-14-2015, 05:01 PM
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Hello
I just want to share my experience and I don't want to refresh old discussions.
Today I discovered three dust particles on my K-S1's sensor. On pictures first of course.
A magnifying glass did the trick. White specks of dust on the sensor.
I two times did the cameras' sensor cleaning - without success.
Then I carefully used a 1KW vacuum cleaner. Dust particles are gone. These three specific particles forever :D.
My advice: Before using a blower/adhesive try a vacuum. But be careful!!! Very careful!!!
Never ever stick/slide the pipe's end into the cameras' lens hole and beware of coming in there.
Just make shure a distance of approximately 1cm to the front side.
And firstly check the vacuum's power - in relation to distance - with your fingers.
Happy cleaning and best regards
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