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Old 04-05-2013, 09:47   #1 (permalink)
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Where do dust bunnies go?

My new camera is my first with a "self cleaning sensor", it has done just under 600 images in four months, and yesterday there it was..............A Dust Bunny in the top right of the image!
So I thought where do they go when shaken off the sensor, as they must just fall into the sensor chamber and be re attracted by the static on the surface of the bypass filter next use. So does it actually do anything other than postpone the time to get the arctic butterfly out and clean the interior?
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Old 04-05-2013, 10:59   #2 (permalink)
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Re: Where do dust bunnies go?

The self cleaning sensors will only be effective against dry dust which has not adhered to the sensor to any great degree. As you say, there is not a catch tray that you can remove and shake out every so often, so what comes around, goes around.

You are just as likely to get pollen on the sensor which is much more difficult to remove and the longer it is left, the harder it gets. Finally, you can get oil from the shutter mechanism on the sensor and the only way to remove this is with a wet swab.
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Old 04-05-2013, 11:00   #3 (permalink)
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Re: Where do dust bunnies go?

Surprisingly, many seem to have found that this self cleaning is much better than expected. My EOS 20D used to require a wet sensor clean every 3 months or so. I have had an EOS 5D Mkii for just over 3 years now and have yet to see a dust bunny so have not had to clean at all. I am amazed but I am sure it cannot go on for ever as I do frequently change lenses. I can only assume that dust is shaken to the bottom of the camera where it is captured in some way.

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Old 04-05-2013, 11:07   #4 (permalink)
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Re: Where do dust bunnies go?

Olympus use an adhesive strip to hold the dust. I've no idea if anyone else has a similar system.
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Old 04-05-2013, 11:09   #5 (permalink)
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Re: Where do dust bunnies go?

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Originally Posted by StephenBatey View Post
Olympus use an adhesive strip to hold the dust. I've no idea if anyone else has a similar system.
Bet that it is good for flies too!!
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Old 04-05-2013, 11:22   #6 (permalink)
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Re: Where do dust bunnies go?

They would all appear to use a very similar system of resonating a thin film of glass which shakes dust off to fall onto a sticky strip

A good explanation here: Autoclean dust removal systems

Despite my initial scepticism, I've had my 7D for over 3 years and approx 60k images with very regular lens changes and I've never cleaned the sensor manually
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Old 04-05-2013, 14:54   #7 (permalink)
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Re: Where do dust bunnies go?

With my1Ds11 s one used to get a lot of dust while the other got hardly any, the 1D11n has got a "tacky" bit just below the sensor but I cant see one on the 1Ds111. So I will use the auto dust delete on the disc that came with the camera and resume cleaning it when it gets intrusive. Incidentaly anyone clean the arctic butterfly brush? and what with?
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Old 04-05-2013, 17:49   #8 (permalink)
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Re: Where do dust bunnies go?

Is there any cleaning advice on the Arctic Butterfly web site?

I'd have thought that a rinse / soak in a pure alcohol such as Iso Propyl Alcohol (IPA) and careful drying might do the job, but the brush will be easily ruined, so do some research before you try that.
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Old 05-05-2013, 12:23   #9 (permalink)
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Re: Where do dust bunnies go?

i have had my 30D sensor cleaned 3 times. and the 7D none. although to be honest it is past the point of having to go in to get it done. its a hassle to get the time so it can wait a bit yet
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Old 06-05-2013, 09:23   #10 (permalink)
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Re: Where do dust bunnies go?

Thanks Dabhand, I will check the site first, I was thinking of using sensor cleaner fluid and a microfibre cloth.
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Old 06-05-2013, 17:26   #11 (permalink)
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Re: Where do dust bunnies go?

Been on the Visible Dust site, it seems that you soak the brush in distilled water, then use "sensor brush clean" fluid, rinse in distilled water till all "the soapy fluid" is off, shake the brush and then leave to air dry overnight. The only place I found the fluid is at Wex at £11.00 per bottle, so I will get some tomorrow and see if it is any good.
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Old 06-05-2013, 23:55   #12 (permalink)
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Re: Where do dust bunnies go?

i have a canon 400d with (i believe) 6 years and i can only see some dust when i have an F over 16 which for me is acceptable. Like many of the referred cameras mine also has some kind of anti dust mechanism.

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Old 07-05-2013, 13:30   #13 (permalink)
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Re: Where do dust bunnies go?

Quote:
Originally Posted by blackadder View Post
My new camera is my first with a "self cleaning sensor", it has done just under 600 images in four months, and yesterday there it was..............A Dust Bunny in the top right of the image!
So I thought where do they go when shaken off the sensor, as they must just fall into the sensor chamber and be re attracted by the static on the surface of the bypass filter next use. So does it actually do anything other than postpone the time to get the arctic butterfly out and clean the interior?
Self cleaning sensors - oh my! You will need to bite the bullet and learn to clean your own sensor. Seems daunting but after a swift drink it becomes easier with practice.
I supply two links one a tutorial and information and the other a provider of the goods you'll need.
I am in no way connected to either company but do use their goods to dry and wet clean my D3 and D300s sensors.

Copper Hill
Copper Hill Images - D-SLR CCD/CMOS Cleaning Supplies & Camera Accessories

Cleaning products supplies
Cleaning Digital Sensors, Cleaning Digital Cameras - Photographic Solutions, Inc. - Digital & Photographic Cleaning Solutions - Photographic Solutions

Hope this is of use to you. There are other products out there but I have no experience of them.

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Old 07-05-2013, 13:58   #14 (permalink)
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Re: Where do dust bunnies go?

Thanks Gandalf, I have been cleaning my sensors for years now, full visible dust outfit with loupe etc, just hoped the "self cleaning" sensor would keep the bunnies at bay for longer than a few months.
I wonder why there is no antistatic / non stick coating for the bypass filter, seeing as the camera Co's put all sorts of "features" on cameras, (most of which I dont want), this would be a good feature to have.
The fluid you use is important, a few years ago I noticed a magenta cast in a lot of my images, on a Canon 5DMk 1, after querying it on a couple of sites it transpired to be the fluid I was using (one of the Vis Dust ones) so I changed the type of fluid (another Vis Dust) and it cured the problem. I now use "smear away".
Thanks for the supplier info, I will see how they compare to my current one.
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Old 07-05-2013, 15:33   #15 (permalink)
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Re: Where do dust bunnies go?

Quote:
Originally Posted by blackadder View Post
Thanks Gandalf, I have been cleaning my sensors for years now, full visible dust outfit with loupe etc, just hoped the "self cleaning" sensor would keep the bunnies at bay for longer than a few months.
I wonder why there is no antistatic / non stick coating for the bypass filter, seeing as the camera Co's put all sorts of "features" on cameras, (most of which I dont want), this would be a good feature to have.
The fluid you use is important, a few years ago I noticed a magenta cast in a lot of my images, on a Canon 5DMk 1, after querying it on a couple of sites it transpired to be the fluid I was using (one of the Vis Dust ones) so I changed the type of fluid (another Vis Dust) and it cured the problem. I now use "smear away".
Thanks for the supplier info, I will see how they compare to my current one.
Apologies black adder. Read it wrong, not trying to take coal to Newcastle. Note to self: read thoroughly before commenting.
Cheers my friend,

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