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**geomez** · 02-26-2014, 05:50 PM

Is the sound of the sensor vibrating during dust removal audible on the K-3? I hear nothing when I do dust removal on the K-3. My K-01 sounds like a paint shaker and the vibration sound is soft but audible on my Q.

Na Horuk · 02-26-2014, 05:59 PM

I really want to see it in action, if it really is so quiet:
https://www.pentaxforums.com/forums/172-pentax-k-3/246184-dust-removal-question-k-3-a.html

calculator01 · 02-26-2014, 06:02 PM

My thread on the same topic... and more!

**geomez** · 02-26-2014, 06:07 PM

Thanks calculator01! As long as I'm not the only one who can't hear it I'm good

**southlander** · 02-26-2014, 06:22 PM

Sounds like an age related thing - if your are young and still have your high frequency hearing, then you might hear the K-3 dust removal. Get a bit older and the loss of high frequency hearing will make the dust removal appear to be silent. I'll put my hand up as a 50 something person and declare I'm in the second camp.

Adam · 02-26-2014, 06:39 PM

Originally posted by geomez

Is the sound of the sensor vibrating during dust removal audible on the K-3? I hear nothing when I do dust removal on the K-3. My K-01 sounds like a paint shaker and the vibration sound is soft but audible on my Q.

It's just barely audible if you put your ear to the camera.

danny09 · 02-26-2014, 09:14 PM

Per Pentax the Dust Removal branded DRII that contains an improved Servo controller+IR sensor. Below post has a nice explanation IIRC.

https://www.pentaxforums.com/forums/172-pentax-k-3/246184-dust-removal-questi...ml#post2622185

lister6520 · 02-27-2014, 10:02 AM

If you have an ultrasound bat detector it is very easy to hear the dust removal, but only with the lens removed. If the lens is in place it is picked up but only very faintly. From what I can tell within the limits of the instrument's capabilities it does a frequency sweep from about 60kHz to 100kHz in 2 seconds.

I am wondering whether the AA simulator also helps contributes significanlty to keeping the sensor clean. After all it effectively orbits at 30,000 RPM, even if with a radius of just 4 microns.

Finchj · 02-27-2014, 01:23 PM

It is audible, barely. Same sound as the AA-simulator (of course). I had forgotten that I had turned the AA-simulator on and went out to take some photos and kept hearing this really high frequency sound each time I clicked the shutter. At first I thought something was wrong with the camera, but then I remembered that the AA-simulator was on. Kind of freaks you out the first time, it isn't nearly the same as the K-7's dust removal.

FWIW, I'm 26 so I haven't lost much hearing yet.

02-26-2014, 05:50 PM	#1
geomez Site Supporter Join Date: Mar 2013 Location: Roanoke, Virginia, USA Photos: Gallery Posts: 1,760	K-3 Dust Removal Sound Is the sound of the sensor vibrating during dust removal audible on the K-3? I hear nothing when I do dust removal on the K-3. My K-01 sounds like a paint shaker and the vibration sound is soft but audible on my Q.

02-26-2014, 06:39 PM	#6
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,608	Originally posted by geomez Is the sound of the sensor vibrating during dust removal audible on the K-3? I hear nothing when I do dust removal on the K-3. My K-01 sounds like a paint shaker and the vibration sound is soft but audible on my Q. It's just barely audible if you put your ear to the camera. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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02-26-2014, 05:59 PM	#2
Na Horuk Veteran Member Join Date: Feb 2012 Location: Slovenia, probably Photos: Gallery \| Albums Posts: 11,186	I really want to see it in action, if it really is so quiet: https://www.pentaxforums.com/forums/172-pentax-k-3/246184-dust-removal-question-k-3-a.html

02-26-2014, 06:02 PM	#3
calculator01 Veteran Member Join Date: Nov 2010 Location: Edmonton, Alberta Photos: Albums Posts: 817	My thread on the same topic... and more!

02-26-2014, 06:07 PM	#4
geomez Site Supporter Join Date: Mar 2013 Location: Roanoke, Virginia, USA Photos: Gallery Posts: 1,760 Original Poster	Thanks calculator01! As long as I'm not the only one who can't hear it I'm good

02-26-2014, 06:22 PM	#5
southlander Site Supporter Join Date: May 2012 Location: Adelaide Photos: Gallery \| Albums Posts: 1,364	Sounds like an age related thing - if your are young and still have your high frequency hearing, then you might hear the K-3 dust removal. Get a bit older and the loss of high frequency hearing will make the dust removal appear to be silent. I'll put my hand up as a 50 something person and declare I'm in the second camp.

02-26-2014, 09:14 PM	#7
danny09 Veteran Member Join Date: May 2008 Location: SF Bay Area Posts: 417	Per Pentax the Dust Removal branded DRII that contains an improved Servo controller+IR sensor. Below post has a nice explanation IIRC. https://www.pentaxforums.com/forums/172-pentax-k-3/246184-dust-removal-questi...ml#post2622185

02-27-2014, 10:02 AM	#8
lister6520 Veteran Member Join Date: May 2012 Posts: 733	If you have an ultrasound bat detector it is very easy to hear the dust removal, but only with the lens removed. If the lens is in place it is picked up but only very faintly. From what I can tell within the limits of the instrument's capabilities it does a frequency sweep from about 60kHz to 100kHz in 2 seconds. I am wondering whether the AA simulator also helps contributes significanlty to keeping the sensor clean. After all it effectively orbits at 30,000 RPM, even if with a radius of just 4 microns.

02-27-2014, 01:23 PM	#9
Finchj Senior Member Join Date: Apr 2012 Location: Espoo Photos: Albums Posts: 142	It is audible, barely. Same sound as the AA-simulator (of course). I had forgotten that I had turned the AA-simulator on and went out to take some photos and kept hearing this really high frequency sound each time I clicked the shutter. At first I thought something was wrong with the camera, but then I remembered that the AA-simulator was on. Kind of freaks you out the first time, it isn't nearly the same as the K-7's dust removal. FWIW, I'm 26 so I haven't lost much hearing yet.

K-3 Dust Removal Sound

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