Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-09-2010, 10:32 PM   #1
New Member




Join Date: Aug 2010
Location: Orange County
Posts: 1
spots in every k-x picture

Hi everyone,

I'm hoping someone can help me out with this. From the very first picture I took with my new k-x (I'm new to dslr cameras), I've noticed a small spot on the right side of every picture. I've included two pictures below with an example of this - in each picture, there's a small dark spot to the middle-right. Can someone help me identify where this is coming from and how to fix it?

Thank you!!

Justin

Attached Images
View Picture EXIF
PENTAX K-x  Photo 
View Picture EXIF
PENTAX K-x  Photo 
08-09-2010, 10:35 PM   #2
Veteran Member
future_retro's Avatar

Join Date: Jun 2010
Location: Western Washington
Posts: 572
Just dust on the sensor

Here's some info

https://www.pentaxforums.com/forums/pentax-beginners-corner-q/109456-dirty-sensor.html
08-09-2010, 11:14 PM   #3
Veteran Member
abmj's Avatar

Join Date: Apr 2010
Location: Central California
Posts: 600
Concur. You have a dust speck on the sensor. Look in your Kx manual for dust removal steps. The Kx has a sensor shaker that might dislodge and remove it. Otherwise, you will probably need a "rocket blower" to blow the dust off. DON'T touch the inside of the camera with anything. Just blow the dust loose with clean air.
08-09-2010, 11:19 PM   #4
Veteran Member
Jasvox's Avatar

Join Date: Oct 2007
Location: Melbourne, Australia
Posts: 3,110
Here, have a good read...

https://www.pentaxforums.com/forums/pentax-beginners-corner-q/109456-dirty-sensor.html

Jason

08-10-2010, 01:14 AM   #5
Veteran Member




Join Date: Dec 2009
Location: Bucharest
Posts: 482
yep it's either dust or you are constantly watched by an UFO )
08-10-2010, 01:22 AM   #6
Senior Member
bentax's Avatar

Join Date: Jan 2008
Location: West Australia
Posts: 190
QuoteOriginally posted by kytra Quote
yep it's either dust or you are constantly watched by an UFO )

You can try to rule out the UFO by shooting a white or light coloured wall inside.
08-10-2010, 08:04 AM   #7
MSM
Veteran Member
MSM's Avatar

Join Date: Dec 2007
Location: Alabama
Photos: Gallery
Posts: 994
QuoteOriginally posted by kytra Quote
yep it's either dust or you are constantly watched by an UFO )
That one made me laugh, thanks.
08-10-2010, 08:48 AM   #8
Veteran Member




Join Date: Sep 2007
Location: USA
Posts: 1,812
QuoteOriginally posted by MSM Quote
That one made me laugh, thanks.
what's so funny about dust on the sensor?

I know you're being watched constantly by UFOs

08-10-2010, 08:49 AM   #9
Site Supporter




Join Date: Feb 2008
Location: Boston MA
Photos: Gallery | Albums
Posts: 273
Looks indeed like dust.
To clean it flip the mirror up, take an old used up toothbrush and crub it clean.....(that is obviously a joke...)
Use the sensor cleaning function of the camera, and if that does not work, rocket blower. Don't use pressured blowers from a can though.

Good luck!
08-10-2010, 09:01 AM   #10
Inactive Account




Join Date: Oct 2007
Location: Niagara, Wisconsin U.S. of Ay.
Posts: 394
Also, I see the left photo was at f11 and the right at f20. The smaller the aperture opening, the more these dust spots will show. Probably wouldn't even see it at say f4
08-10-2010, 09:02 AM   #11
Inactive Account




Join Date: Oct 2009
Photos: Albums
Posts: 79
QuoteOriginally posted by Eric Seavey Quote
Looks indeed like dust.
To clean it flip the mirror up, take an old used up toothbrush and crub it clean.....(that is obviously a joke...)
Use the sensor cleaning function of the camera, and if that does not work, rocket blower. Don't use pressured blowers from a can though.

Good luck!
You can also throw it in the washer, but make sure to use the gentle cycle. (joking too.)
08-10-2010, 09:50 AM   #12
Veteran Member




Join Date: Sep 2007
Location: USA
Posts: 1,812
QuoteOriginally posted by magnum1 Quote
Also, I see the left photo was at f11 and the right at f20. The smaller the aperture opening, the more these dust spots will show. Probably wouldn't even see it at say f4
Are you sure about that?

Dust on the sensor should not be affected by what aperture is used - other than obviously a dust obstruction would be harder to see in shadow areas.

An obstruction such as dust should show up whatever aperture is used - since it is on the sensor surface and blocks the light at that point/area.
08-10-2010, 09:54 AM   #13
Inactive Account




Join Date: Aug 2008
Location: Michigan, USA
Photos: Gallery | Albums
Posts: 7,485
QuoteOriginally posted by UnknownVT Quote
Are you sure about that?

Dust on the sensor should not be affected by what aperture is used - other than obviously a dust obstruction would be harder to see in shadow areas.

An obstruction such as dust should show up whatever aperture is used - since it is on the sensor surface.
The smaller the aperture opening, the more prevalent and well defined the dust will become. At wider apertures, it may appear as more of a smudge or be very difficult to see. You are right about it being there regardless of aperture and it Will affect the photo however. That's been my experience anyway.

08-10-2010, 09:56 AM   #14
Inactive Account




Join Date: Oct 2007
Location: Niagara, Wisconsin U.S. of Ay.
Posts: 394
QuoteOriginally posted by UnknownVT Quote
Are you sure about that?

Dust on the sensor should not be affected by what aperture is used - other than obviously a dust obstruction would be harder to see in shadow areas.

An obstruction such as dust should show up whatever aperture is used - since it is on the sensor surface and blocks the light at that point/area.
You know, now that you say that, I have to wonder. I always thought it was a factor of that, but now, I might have to inspect my lenses on the connection side. All I know is, my spots show up MUCH more at smaller aperture.
08-10-2010, 10:00 AM   #15
Inactive Account




Join Date: Oct 2007
Location: Niagara, Wisconsin U.S. of Ay.
Posts: 394
Nope, I have to stick with my first observation. Mine are on the sensor, and they do vary depending on aperture setting.
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, dslr, k-x, photography, picture, spot
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
?? re Image Spots and Cause geezer52 Photographic Technique 9 11-04-2009 08:36 PM
spots DanLoc78 Pentax SLR Lens Discussion 15 07-18-2008 11:07 AM
Are people required to be in a picture to make it a good picture? BPT Photographic Technique 46 07-07-2008 05:44 PM
What are these spots? BBear Pentax DSLR Discussion 19 04-23-2008 09:00 AM
What are these spots? xs400 Pentax DSLR Discussion 26 05-19-2007 03:21 PM



All times are GMT -7. The time now is 04:03 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