Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
03-10-2010, 05:08 PM   #1
Pentaxian
Pablom's Avatar

Join Date: Feb 2010
Location: Jerusalem
Posts: 1,940
Sensor dust

Hello everybody!

So I was looking at some photos for editing in my pc and I noticed an ugly mole on the upper right corner of each photo(!).
This is my first dslr (K-x) after a long run with film slr and some p&s' so this is new to me, and I'm very surprised it happened so soon since I'm using the camera for about a month, mostly outdoors with moderate lens changing but I wouldn't say I've used it extensively.
I used the dust detection function and there were a few specs on the screen so I shook the sensor a few times and the next dust detection left only one ugly mole, which was the only one that bothered me to begin with so effectively non of it helped.
here's how my sensor looks right now:


My questions are: 1. what the hell can I do to get rid of that disgusting tumor?
2. how can I prevent this from happening?
3. who shot JFK?

edit: I understand that in most photo editing software there is a specific tool to remove these malicious specs. does anyone know how this can be made using Pentax utility or Lightroom 2.6?

Thanks,
Pablo


Last edited by Pablom; 03-10-2010 at 06:00 PM.
03-10-2010, 05:47 PM   #2
Senior Member
GingerBeer's Avatar

Join Date: Oct 2009
Location: Brisbane
Posts: 124
QuoteOriginally posted by Pablom Quote
Hello everybody!

My questions are: 1. what the hell can I do to get rid of that disgusting tumor?
2. how can I prevent this from happening?
3. who shot JFK?

Thanks,
Pablo
1. Perhaps a blower might help but if not you could try one of these cleaning sticks: YouTube - Pentax O-ICK1 Image Sensor Cleaning Kit
They can be bought off ebay.
2. You can't prevent this from happening but you can do things to minimise the chances of this happening - being careful when changing lenses etc.
03-10-2010, 06:13 PM   #3
Pentaxian
Pablom's Avatar

Join Date: Feb 2010
Location: Jerusalem
Posts: 1,940
Original Poster
QuoteOriginally posted by GingerBeer Quote
1. Perhaps a blower might help but if not you could try one of these cleaning sticks: YouTube - Pentax O-ICK1 Image Sensor Cleaning Kit
They can be bought off ebay.
well that's what the manual says. I was hoping for some other creative solution if there is any
QuoteOriginally posted by GingerBeer Quote
2. You can't prevent this from happening but you can do things to minimise the chances of this happening - being careful when changing lenses etc.
I thought I was careful I don't know how I got this stain in just one month of use
03-10-2010, 06:35 PM   #4
Site Supporter
davidreilly3207's Avatar

Join Date: Sep 2009
Location: South Jersey
Photos: Gallery | Albums
Posts: 587
A blower such as the giotto rocket should do the trick. Do not use canned air or compressed air from a compressor. If not, I recommend sensor swabs plus from Photographic Solutions.

03-10-2010, 06:44 PM   #5
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 10,157
FWIW, I've been using canned gas for 6 1/2 years for cleaning DSLR sensors. I think the warnings about it damaging the camera is an urban myth.
Don't use compressed air from a compressor though, as moisture and/or oil tends to spray out of them.
03-10-2010, 07:42 PM   #6
Senior Member
AOShep's Avatar

Join Date: Feb 2010
Location: Eastern PA
Photos: Gallery | Albums
Posts: 293
I just tryed using a can of Dust Off on my K10D and it worked! 2 or 3 short blasts at around 6 inches.
03-11-2010, 07:54 AM   #7
Pentaxian
Pablom's Avatar

Join Date: Feb 2010
Location: Jerusalem
Posts: 1,940
Original Poster
Thanks guys,

I think I'll get myself a blower thingy to start with and come back with results.
03-11-2010, 02:13 PM   #8
Veteran Member
GoremanX's Avatar

Join Date: Dec 2009
Location: Georgia, VT
Photos: Albums
Posts: 1,653
QuoteOriginally posted by AOShep Quote
I just tryed using a can of Dust Off on my K10D and it worked! 2 or 3 short blasts at around 6 inches.
worth pointing out that this isn't recommended. I do it too, but you're not supposed to.

03-15-2010, 04:14 PM   #9
Inactive Account




Join Date: Mar 2010
Location: BRUSSELS
Posts: 27
I've been using the blower and it works perfectly.
03-19-2010, 03:34 AM   #10
New Member




Join Date: Feb 2010
Location: Ohio, USA
Posts: 14
Pablom:

Did you get the dirt off the sensor. I am having the same problem with my K-x. It happen on my first outing too. I got several dust spot that a bulb blower does not remove.

Did you get your problem solved? What methods did you tried?

Toro
03-19-2010, 04:14 AM   #11
Veteran Member
user440's Avatar

Join Date: Jan 2007
Location: St. Louis, MO
Photos: Gallery
Posts: 350
QuoteOriginally posted by Toro Quote
Pablom:

Did you get the dirt off the sensor. I am having the same problem with my K-x. It happen on my first outing too. I got several dust spot that a bulb blower does not remove.

Did you get your problem solved? What methods did you tried?

Toro
If a blower does not work then use (as recommended above) a sensor stick/swab.
03-19-2010, 08:38 AM   #12
Loyal Site Supporter
Canada_Rockies's Avatar

Join Date: Nov 2007
Location: Sparwood, BC, Canada
Photos: Gallery | Albums
Posts: 9,552
QuoteOriginally posted by Pablom Quote
Hello everybody!

So I was looking at some photos for editing in my pc and I noticed an ugly mole on the upper right corner of each photo(!).
This is my first dslr (K-x) after a long run with film slr and some p&s' so this is new to me, and I'm very surprised it happened so soon since I'm using the camera for about a month, mostly outdoors with moderate lens changing but I wouldn't say I've used it extensively.
I used the dust detection function and there were a few specs on the screen so I shook the sensor a few times and the next dust detection left only one ugly mole, which was the only one that bothered me to begin with so effectively non of it helped.
here's how my sensor looks right now:


My questions are: 1. what the hell can I do to get rid of that disgusting tumor?
2. how can I prevent this from happening?
3. who shot JFK?

edit: I understand that in most photo editing software there is a specific tool to remove these malicious specs. does anyone know how this can be made using Pentax utility or Lightroom 2.6?

Thanks,
Pablo
  1. Sometimes this procedure will do the trick. If not you will need to use a sensor cleaning kit with wet swabs or sticky tips. Follow the instructions exactly for the swab/sticky. Do not take short cuts. Replacing the sensor is quite expensive!
    1. In a clean, static free area, such as your bathroom, Remove lens
    2. Turn camera mount side down
    3. Run Dust Removal shaker several times
    4. Replace lens
    5. Check for dust
  2. You cannot prevent this from happening, but you can reduce the number of times it happens significantly.
    1. Always turn off the camera before removing the lens. This reduces the static charge on the sensor that attracts dust.
    2. Always keep the mount turned down. More of the dust will fall away from the camera this way.
    3. Turn on the power on dust removal. This shakes some of the dust off the sensor that seems to get in there despite the weather sealing of my camera and lenses.
    4. Do your best to change lenses in a protective position. I have not yet started to carry my old film changing bag around, but I'm getting tempted by a stubborn spot I got recently.
  3. Unknown assailant(s).
  4. With Lightroom 2.x to fix the spots,
    1. Go to the develop module.
    2. Under the histogram, select the O-> icon.
    3. Move the mouse cursor, which has become a circle to the spot.
    4. Use the bracket keys [ and ] to size the circle to include a little bit more than the spot.
    5. Click the mouse.
    6. Move the area selected by LR if you need to.
    7. [Esc] or click O-> again.
    8. Presto changeo, the spot is gone!
    9. You can then apply this correction to all the shots you took since the spot showed up. The [Help] system will give you the details of how this works.
03-20-2010, 01:28 PM   #13
Pentaxian
Pablom's Avatar

Join Date: Feb 2010
Location: Jerusalem
Posts: 1,940
Original Poster
QuoteOriginally posted by Toro Quote
Pablom:

Did you get the dirt off the sensor. I am having the same problem with my K-x. It happen on my first outing too. I got several dust spot that a bulb blower does not remove.

Did you get your problem solved? What methods did you tried?

Toro
I actually haven't tried the blower yet since I didn't have the time to get one but I will soon and see if that works. I really don't want to start messing with a swab, I'll probably prefer sending it to a lab.
Meanwhile that spot did reduce a little after a few dozen shakes but I think I reached the limit with it.
dust 11.3:


dust 20.3:

edit: well, maybe it didn't reduce

Last edited by Pablom; 03-20-2010 at 02:18 PM.
03-20-2010, 02:25 PM   #14
Pentaxian
Pablom's Avatar

Join Date: Feb 2010
Location: Jerusalem
Posts: 1,940
Original Poster
QuoteOriginally posted by Canada_Rockies Quote
  1. Sometimes this procedure will do the trick. If not you will need to use a sensor cleaning kit with wet swabs or sticky tips. Follow the instructions exactly for the swab/sticky. Do not take short cuts. Replacing the sensor is quite expensive!
    1. In a clean, static free area, such as your bathroom, Remove lens
    2. Turn camera mount side down
    3. Run Dust Removal shaker several times
    4. Replace lens
    5. Check for dust
  2. You cannot prevent this from happening, but you can reduce the number of times it happens significantly.
    1. Always turn off the camera before removing the lens. This reduces the static charge on the sensor that attracts dust.
    2. Always keep the mount turned down. More of the dust will fall away from the camera this way.
    3. Turn on the power on dust removal. This shakes some of the dust off the sensor that seems to get in there despite the weather sealing of my camera and lenses.
    4. Do your best to change lenses in a protective position. I have not yet started to carry my old film changing bag around, but I'm getting tempted by a stubborn spot I got recently.
  3. Unknown assailant(s).
  4. With Lightroom 2.x to fix the spots,
    1. Go to the develop module.
    2. Under the histogram, select the O-> icon.
    3. Move the mouse cursor, which has become a circle to the spot.
    4. Use the bracket keys [ and ] to size the circle to include a little bit more than the spot.
    5. Click the mouse.
    6. Move the area selected by LR if you need to.
    7. [Esc] or click O-> again.
    8. Presto changeo, the spot is gone!
    9. You can then apply this correction to all the shots you took since the spot showed up. The [Help] system will give you the details of how this works.
1) tried it - still the same I guess mine's a sticky
2) guess I'll have to be more careful than. I got used to change lenses quite a lot, it never bothered me too much, in film I seldom got the mirror dirty but I didn't really mind because the photos were clear but I guess this is a totally diferent ball game.
3) how about that Lee Harvey Oswald fellow, didn't he have something to do with it?
4) thanks, that is very helpfull and much simpler than I thought
03-20-2010, 06:31 PM   #15
Inactive Account




Join Date: Aug 2008
Location: Michigan, USA
Photos: Gallery | Albums
Posts: 7,484
You probably need one of these..

YouTube - Pentax O-ICK1 Image Sensor Cleaning Kit

It's the only thing that's ever worked for me in removing the stuborn dusties..

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!
camera, detection, dust, mole, pentax help, photography, sensor, specs
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Dust on Sensor yahmon Troubleshooting and Beginner Help 6 04-27-2010 03:58 PM
dust on sensor or dust on lens 41ants Troubleshooting and Beginner Help 10 10-08-2009 10:28 AM
Sensor Dust or what??? NT-Tim Pentax DSLR Discussion 10 03-25-2009 08:01 PM
dust on sensor Christl Troubleshooting and Beginner Help 4 03-14-2009 03:06 PM
dust behind sensor? jsundin Pentax DSLR Discussion 3 11-24-2006 09:51 AM



All times are GMT -7. The time now is 08:41 AM. | See also: NikonForums.com, CanonForums.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