Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
11-06-2007, 08:35 PM   #1
Forum Member




Join Date: Aug 2007
Location: Denver
Photos: Gallery
Posts: 92
K100D making "static" sound

Hi all,
I just finished blowing dust off of my K100D with a rocket blower, and now the camera is making an odd sound. It's a sort of low, static-y grumbling sound. It's not very loud, you need to be within maybe 6 inches of the camera to hear it. Honestly, it sounds a bit like a hard disk writing, but I can't imagine there's anything like that going on in there.

The photos from the camera seem to be fine as far as I can tell.

I've tried it with two different lenses and the sound happens in both cases. The lenses themselves seem to be fine with snappy aperture blades, smooth zooming & focusing. I don't get the sound when stopping down with the optical DOF preview.

I hear the sound for the entire length of a long exposure. If noise reduction is on I can hear it for about the same amount of time after the exposure. If noise reduction is off it bursts a bit after the exposure is done and then stops.

I hear the sound for the entire time that the camera is in cleaning mode, which I wouldn't think is processor intensive. But perhaps it's because the camera is displaying instructions on the LCD?

I do not hear the sound when looking through photos in playback mode.

Based on the symptoms I would guess it's processor or image-capture related somehow, but I can't figure it out.

Unfortunately this camera is going on vacation tomorrow morning. I'd really like to have some idea what's going on before then. Can anyone help me shed light on this, please?

Thanks in advance,
BKR

UPDATE: I turned off shake reduction, and then I don't hear the sound during an exposure but I do hear it during the noise reduction period after the exposure. So I guess maybe I managed to screw up something in the shake reduction system. Great.

From an academic standpoint it's interesting because that implies that shake reduction is turned on during the noise reduction period regardless of the camera setting. It also implies that it's on while sensor cleaning is happening, which seems really counterintuitive to me.

I'd still appreciate anyone's thoughts on this.


Last edited by breischl; 11-06-2007 at 08:44 PM. Reason: New information
11-06-2007, 09:08 PM   #2
Veteran Member
pcarfan's Avatar

Join Date: Sep 2007
Location: Dayton, Ohio
Photos: Gallery | Albums
Posts: 2,958
I know the SR in the K10D makes that 'static' noise, which you really have to put your ear against the back of the camera to hear. It stays on whether SR is ON or OFF as I think the mechanism engages when SR is ON and deengages when OFF but the motors keep running. BUT the intensity of this noise increases if you gradually and gently mimic an increasing shake and the sound wanes as you decrease the shake.
11-06-2007, 11:40 PM   #3
Veteran Member
SuperAkuma's Avatar

Join Date: Jul 2007
Location: Bay Area, CA
Photos: Gallery
Posts: 445
That sound is your SR working. When I first got my K100D I thought something was wrong with it too but I found out it was just the SR. I haven't really noticed it with noise reductions though.
11-07-2007, 12:16 AM   #4
Site Supporter




Join Date: Mar 2007
Location: Los Angeles, CA
Photos: Albums
Posts: 389
Yep. It's just the shake reduction. I can hear it if I forget to turn off SR for long exposures and when I do a sensor cleaning. Your camera is fine.

11-07-2007, 04:42 AM   #5
Veteran Member
Finn's Avatar

Join Date: Feb 2007
Location: Phoenix
Photos: Gallery
Posts: 1,056
Whew, that's good to know. I thought it was just mine!
11-07-2007, 04:03 PM   #6
Senior Member




Join Date: Dec 2006
Location: Vancouver BC
Posts: 230
It's not static it's your camera moonlighting as a microscopic welder. When you're not looking it swallows a couple tiny jobs and welds away, trying to be careful not to cause any damage to its own circuitry, and then again when you turn away your attention it ships out the finished job and if given enough time it takes in another or just waits for the next opportunity. Gross revenue from this venture goes directly to Pentax. They managed to get the transferring of projects to 99.99% effective but they were not able to suppress welding noise, so as a cover to the odd user picking up the sound they came up with a marketing ploy called SR. They in turn payed a few of us to extol the virtues of this mythical feature and the 'noise' it creates, they have most everybody convinced too. It seems that some jobs performed at the out edges of it capability parameters have proven the parameters to be a bit too liberal - users suffering from FF or BF. Cameras in their final check before shipping, or in some cases even after delivery, may have needed there welding abilities fine tuned - those are the ones that got a bit of welding spatter on the sensor resulting in 'hot' pixels.

I only ever received my first payment for my part in this ruse, and after 11 months of fighting for more than my initial deposit fee I've decided to go public. I am currently locked away in a safe house provided by RiceHigh, but don't tell anybody.

I also did not get enough sleep last night, drank too much caffeine today, and have too much boring paperwork ahead of me.
11-07-2007, 06:37 PM   #7
Site Supporter
Mallee Boy's Avatar

Join Date: Sep 2006
Location: Hindmarsh Isl. Sth Australia
Photos: Gallery | Albums
Posts: 3,485
QuoteOriginally posted by jnorth Quote
It's not static it's your camera moonlighting as a microscopic welder. When you're not looking it swallows a couple tiny jobs and welds away, trying to be careful not to cause any damage to its own circuitry, and then again when you turn away your attention it ships out the finished job and if given enough time it takes in another or just waits for the next opportunity. Gross revenue from this venture goes directly to Pentax. They managed to get the transferring of projects to 99.99% effective but they were not able to suppress welding noise, so as a cover to the odd user picking up the sound they came up with a marketing ploy called SR. They in turn payed a few of us to extol the virtues of this mythical feature and the 'noise' it creates, they have most everybody convinced too. It seems that some jobs performed at the out edges of it capability parameters have proven the parameters to be a bit too liberal - users suffering from FF or BF. Cameras in their final check before shipping, or in some cases even after delivery, may have needed there welding abilities fine tuned - those are the ones that got a bit of welding spatter on the sensor resulting in 'hot' pixels.

I only ever received my first payment for my part in this ruse, and after 11 months of fighting for more than my initial deposit fee I've decided to go public. I am currently locked away in a safe house provided by RiceHigh, but don't tell anybody.

I also did not get enough sleep last night, drank too much caffeine today, and have too much boring paperwork ahead of me.

A couple of errant spot welds here & there would explain some slow AF issues on the new DA* lenses too.........more coffee.??
11-10-2007, 03:41 PM   #8
Forum Member




Join Date: Aug 2007
Location: Denver
Photos: Gallery
Posts: 92
Original Poster
JNorth, I think you need to adjust your tinfoil beanie, it seems to be slipping.

Thanks for the replies all, glad to know I'm just being a photo-hypo-chondriac.

11-11-2007, 03:24 PM   #9
Inactive Account




Join Date: Aug 2007
Location: Pennsylvania
Photos: Gallery
Posts: 45
mine doesn't make any noise on or off.
11-11-2007, 08:39 PM   #10
Veteran Member




Join Date: Sep 2006
Photos: Gallery
Posts: 5,713
QuoteOriginally posted by jnorth Quote
It's not static it's your camera moonlighting as a microscopic welder. When you're not looking it swallows a couple tiny jobs and welds away, trying to be careful not to cause any damage to its own circuitry, and then again when you turn away your attention it ships out the finished job and if given enough time it takes in another or just waits for the next opportunity. Gross revenue from this venture goes directly to Pentax. They managed to get the transferring of projects to 99.99% effective but they were not able to suppress welding noise, so as a cover to the odd user picking up the sound they came up with a marketing ploy called SR. They in turn payed a few of us to extol the virtues of this mythical feature and the 'noise' it creates, they have most everybody convinced too. It seems that some jobs performed at the out edges of it capability parameters have proven the parameters to be a bit too liberal - users suffering from FF or BF. Cameras in their final check before shipping, or in some cases even after delivery, may have needed there welding abilities fine tuned - those are the ones that got a bit of welding spatter on the sensor resulting in 'hot' pixels.

I only ever received my first payment for my part in this ruse, and after 11 months of fighting for more than my initial deposit fee I've decided to go public. I am currently locked away in a safe house provided by RiceHigh, but don't tell anybody.

I also did not get enough sleep last night, drank too much caffeine today, and have too much boring paperwork ahead of me.
How can I hire my camera, I have a couple of welding jobs that need doing
11-12-2007, 08:50 PM   #11
Senior Member




Join Date: Dec 2006
Location: Vancouver BC
Posts: 230
Cameras not seeming to make any noise are those that are in one of two camps. They left factory with a beta of a new stealth cloaking device to further hide the existence of such a technology. Or they have since, and there are a few, joined the labour movement and are holding out for a new improved collective bargaining agreement. Of course there is also a scenario 1A - the user just hasn't detected any activity yet. I sorry for the delay in posting but I have had to since relocated twice to new safehouses. I'm afraid this update may again force me to continue seeking a safer climate, but in the intersts of solidarity amongst Pentax users, or usees I have taken my own safety in my hands thrown caution out the window and the baby, bathwater, and tub into the wind or some other such garbled cliche.

This thread derailment brought to you by Pentax, the mircoweld people, and viewers like you.
11-16-2007, 01:56 PM   #12
Forum Member
Jimsi777's Avatar

Join Date: Sep 2007
Location: Virginia
Posts: 75
Mine just chirps like a bird
11-16-2007, 03:20 PM   #13
Inactive Account




Join Date: Aug 2007
Location: Pennsylvania
Photos: Gallery
Posts: 45
this makes me wonder if mine is working. How would I know?
11-16-2007, 03:25 PM   #14
Forum Member
Jimsi777's Avatar

Join Date: Sep 2007
Location: Virginia
Posts: 75
The longer the exposure the more noise it makes, Try a time lapse night shot at 30 seconds, youll hear it big time after the shutter curtain closes, youll hear the noise as the picture is processing...
11-17-2007, 02:19 PM   #15
Veteran Member




Join Date: Aug 2007
Location: England
Posts: 309
Same here...

QuoteOriginally posted by breischl Quote
I just finished blowing dust off of my K100D with a rocket blower, and now the camera is making an odd sound.
Spooky! A couple of days ago I posted a similar thread in another forum. I deduced that it was SR but I was posting about something else...

QuoteOriginally posted by breischl Quote
I hear the sound for the entire time that the camera is in cleaning mode
I had noticed a spot on my pictures, I thought there must be dust on the sensor so I put it into cleaning mode just to have a look. I didn't see any dust but, like you, I noticed that the SR noise. OK, so I also noticed that the SR switch was on. So, I switched off the camera, switched off SR, and put it back into cleaning mode. Again, I could hear SR.

Is this a bug? Why is SR on during cleaning? Why is it *always* on during cleaning, even when the SR switch is off?

Incidentally, when I did some test shots the dust particle that was worrying me had gone. Coincidence? Maybe. Maybe just exposing the sensor was enough for the dust to fall off. But why is SR on during cleaning mode?

QuoteOriginally posted by breischl Quote
It also implies that it's on while sensor cleaning is happening, which seems really counterintuitive to me.
Well not when you consider that the K100D Super cleaning mode purposely shakes the sensor to clean it. But it's odd that sensor shaking occurs on the K100D (ie not Super).

As I said, I mentioned this on another forum, and pointed out that the K100D manual does not mention shaking the sensor in cleaning mode, but I still got a pile of patronising answers telling me just what I had told them: that the K100D manual says that it does not have sensor shake cleaning mode.

Even if the K100D has a sensor shake cleaning mode by accident, it lacks the sticky pad that apparently other cameras have to catch the dust that's shaken off.

Richard
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
bit, camera, dslr, exposure, mode, noise, period, photography, processor, reduction, shake, sound
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
K-7 Movie "Sound" Primer dopeytree Video and Pentax HDSLRs 58 04-06-2010 11:00 AM
"In the Wind" Making of Photo Shoot Video benjikan Photographic Technique 8 01-17-2010 09:35 AM
The "Kaching" sound. atyab Pentax DSLR Discussion 3 01-02-2009 03:35 PM
"Hunger for a DA*50-135?" or "The DA*50-135 as a bird lens!" or "Iron age birds?" Douglas_of_Sweden Post Your Photos! 4 08-13-2008 06:09 AM
Great video tutorial on making skin tones "glow" slip Digital Processing, Software, and Printing 2 04-02-2007 10:38 AM



All times are GMT -7. The time now is 04:25 AM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top