Strange Sounds Coming from K-1

**geomez** · 05-06-2016, 01:15 AM

I got my K-1 today. When I was testing it in a quiet room I noticed that when I half-way pressed the shutter button, a quick sound and slight vibration coming from the camera. Upon letting go of the shutter button, the sound and vibration happened again about three seconds later. I assumed the effect was coming from the Shake Reduction, so I turned it off and the effect persists.

To try to figure out what was happening, I went into a sound-free room, turned the camera on, and depressed the shutter button with my ear against the camera. I noticed that in between the sound and vibration that happens when the shutter button is pressed and the sound and vibration that happens three seconds after it is let go, there is another sound. It is a faint electric type sound. It kind of reminds me of the sound other Pentax DSLRs make when the sensor is being exposed to light both during exposure (put you ear against the rear LCD during a long exposure to test) and while in Live View.

I have no idea what this means and have no idea why the sensor would vibrate at all if the SR is off. Could it be that though the SR is set to "Off", it is still on?
Has anybody else noticed this and does anybody have any ideas as to what this is?

K-1 Sound

I recorded the sound with my phone. It was only able to pick up the start and end sounds, unfortunately not the middle sound. It's quiet, but you can hear it in the video linked above. If you have a K-1 please try it your self in a quiet room and let me know if mine is the only one.

Topsy · 05-06-2016, 01:33 AM

As stated in an earlier thread, the sensor still has to be held in place centred for taking pictures. It's most likely that.

https://www.pentaxforums.com/forums/190-pentax-k-1/319998-k-1-whats-moving.html

**othar** · 05-06-2016, 01:35 AM

I only own a K-3 and my speakers are crap so I can't tell if the sound you hear is normal but SR moves the sensor around to compensate your movement. If you turn SR off the sensor still has to be locked in place (by electromagnets or however the SR system works) to ensure a correct aligned sensor.

Adam · 05-06-2016, 03:03 AM

I think the K-1 keeps SR on a little bit longer than other pentax bodies following a half-press. I've yet to figure out the exact pattern, but it's perfectly normal for it to be noisy

Adam
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**geomez** · 05-06-2016, 12:30 PM

Originally posted by Adam

I think the K-1 keeps SR on a little bit longer than other pentax bodies following a half-press. I've yet to figure out the exact pattern, but it's perfectly normal for it to be noisy

The sound and vibration happen while SR is off or on. It is different than every other Pentax camera I've owned.
I imagine it's normal, I'd just like to know what it is and why it's different. It's actually kind of annoying.

**todd** · 05-06-2016, 01:51 PM

Originally posted by geomez

The sound and vibration happen while SR is off or on. It is different than every other Pentax camera I've owned.
I imagine it's normal, I'd just like to know what it is and why it's different. It's actually kind of annoying.

Still awaiting my K-1 arrival set for this afternoon but agree that from your video, I already find it kind of annoying too.. Ruh roh... haha...

gryhnd · 05-06-2016, 02:21 PM

I have the same sound. I'm guessing it may be the sensor being moved into an active position and then parked when nothing's going to happen? That's what it "feels" like, anyway.

Adam · 05-06-2016, 07:14 PM

Originally posted by gryhnd

I have the same sound. I'm guessing it may be the sensor being moved into an active position and then parked when nothing's going to happen? That's what it "feels" like, anyway.

Yup, plus the sensor is more than twice as heavy

DSLRnovice · 05-07-2016, 06:36 AM

Wow. All these years I did not know that my K20d has the same noise, as much as I obsessed over it! I might have never noticed it with the K-1, but it might be a little louder. At least we know that it is common and normal.

05-06-2016, 01:15 AM	#1
geomez Site Supporter Join Date: Mar 2013 Location: Roanoke, Virginia, USA Photos: Gallery Posts: 1,760	Strange Sounds Coming from K-1 I got my K-1 today. When I was testing it in a quiet room I noticed that when I half-way pressed the shutter button, a quick sound and slight vibration coming from the camera. Upon letting go of the shutter button, the sound and vibration happened again about three seconds later. I assumed the effect was coming from the Shake Reduction, so I turned it off and the effect persists. To try to figure out what was happening, I went into a sound-free room, turned the camera on, and depressed the shutter button with my ear against the camera. I noticed that in between the sound and vibration that happens when the shutter button is pressed and the sound and vibration that happens three seconds after it is let go, there is another sound. It is a faint electric type sound. It kind of reminds me of the sound other Pentax DSLRs make when the sensor is being exposed to light both during exposure (put you ear against the rear LCD during a long exposure to test) and while in Live View. I have no idea what this means and have no idea why the sensor would vibrate at all if the SR is off. Could it be that though the SR is set to "Off", it is still on? Has anybody else noticed this and does anybody have any ideas as to what this is? K-1 Sound I recorded the sound with my phone. It was only able to pick up the start and end sounds, unfortunately not the middle sound. It's quiet, but you can hear it in the video linked above. If you have a K-1 please try it your self in a quiet room and let me know if mine is the only one.

05-06-2016, 07:14 PM	#8
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,594	Originally posted by gryhnd I have the same sound. I'm guessing it may be the sensor being moved into an active position and then parked when nothing's going to happen? That's what it "feels" like, anyway. Yup, plus the sensor is more than twice as heavy 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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05-06-2016, 01:33 AM	#2
Topsy Veteran Member Join Date: Feb 2014 Photos: Gallery \| Albums Posts: 625	As stated in an earlier thread, the sensor still has to be held in place centred for taking pictures. It's most likely that. https://www.pentaxforums.com/forums/190-pentax-k-1/319998-k-1-whats-moving.html

05-06-2016, 01:35 AM	#3
othar Site Supporter Join Date: May 2014 Location: Linz Photos: Albums Posts: 3,098	I only own a K-3 and my speakers are crap so I can't tell if the sound you hear is normal but SR moves the sensor around to compensate your movement. If you turn SR off the sensor still has to be locked in place (by electromagnets or however the SR system works) to ensure a correct aligned sensor.

05-06-2016, 03:03 AM	#4
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,594	I think the K-1 keeps SR on a little bit longer than other pentax bodies following a half-press. I've yet to figure out the exact pattern, but it's perfectly normal for it to be noisy 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:

05-06-2016, 12:30 PM	#5
geomez Site Supporter Join Date: Mar 2013 Location: Roanoke, Virginia, USA Photos: Gallery Posts: 1,760 Original Poster	Originally posted by Adam I think the K-1 keeps SR on a little bit longer than other pentax bodies following a half-press. I've yet to figure out the exact pattern, but it's perfectly normal for it to be noisy The sound and vibration happen while SR is off or on. It is different than every other Pentax camera I've owned. I imagine it's normal, I'd just like to know what it is and why it's different. It's actually kind of annoying.

05-06-2016, 01:51 PM	#6
todd Site Supporter Join Date: Jul 2008 Location: Arizona Photos: Gallery Posts: 6,791	Originally posted by geomez The sound and vibration happen while SR is off or on. It is different than every other Pentax camera I've owned. I imagine it's normal, I'd just like to know what it is and why it's different. It's actually kind of annoying. Still awaiting my K-1 arrival set for this afternoon but agree that from your video, I already find it kind of annoying too.. Ruh roh... haha...

05-06-2016, 02:21 PM	#7
gryhnd Senior Member Join Date: Jul 2013 Location: Southeastern MA Posts: 240	I have the same sound. I'm guessing it may be the sensor being moved into an active position and then parked when nothing's going to happen? That's what it "feels" like, anyway.

05-07-2016, 06:36 AM	#9
DSLRnovice Senior Member Join Date: Jul 2008 Posts: 192	Wow. All these years I did not know that my K20d has the same noise, as much as I obsessed over it! I might have never noticed it with the K-1, but it might be a little louder. At least we know that it is common and normal.

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