spots in every k-x picture

jrkoppelman · 08-09-2010, 10:32 PM

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

View Picture EXIF

future_retro · 08-09-2010, 10:35 PM

Just dust on the sensor

Here's some info

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

abmj · 08-09-2010, 11:14 PM

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.

Jasvox · 08-09-2010, 11:19 PM

Here, have a good read...

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

Jason

kytra · 08-10-2010, 01:14 AM

yep it's either dust or you are constantly watched by an UFO

)

bentax · 08-10-2010, 01:22 AM

Originally posted by kytra

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.

MSM · 08-10-2010, 08:04 AM

Originally posted by kytra

yep it's either dust or you are constantly watched by an UFO

)

That one made me laugh, thanks.

UnknownVT · 08-10-2010, 08:48 AM

Originally posted by MSM

That one made me laugh, thanks.

what's so funny about dust on the sensor?

I know you're being watched constantly by UFOs

**Eric Seavey** · 08-10-2010, 08:49 AM

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!

magnum1 · 08-10-2010, 09:01 AM

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

pentaxpup · 08-10-2010, 09:02 AM

Originally posted by Eric Seavey

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.)

UnknownVT · 08-10-2010, 09:50 AM

Originally posted by magnum1

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.

JeffJS · 08-10-2010, 09:54 AM

Originally posted by UnknownVT

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.

magnum1 · 08-10-2010, 09:56 AM

Originally posted by UnknownVT

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.

magnum1 · 08-10-2010, 10:00 AM

Nope, I have to stick with my first observation. Mine are on the sensor, and they do vary depending on aperture setting.

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08-09-2010, 10:35 PM	#2
future_retro Veteran Member 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
abmj Veteran Member 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
Jasvox Veteran Member Join Date: Oct 2007 Location: Melbourne, Australia Posts: 3,107	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
kytra 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
bentax Senior Member Join Date: Jan 2008 Location: West Australia Posts: 190	Originally posted by kytra 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 Join Date: Dec 2007 Location: Alabama Photos: Gallery Posts: 994	Originally posted by kytra 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
UnknownVT Veteran Member Join Date: Sep 2007 Location: USA Posts: 1,812	Originally posted by MSM 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
Eric Seavey Site Supporter Join Date: Feb 2008 Location: Irvine, CA Photos: Gallery \| Albums Posts: 307	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
magnum1 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
pentaxpup Inactive Account Join Date: Oct 2009 Photos: Albums Posts: 79	Originally posted by Eric Seavey 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
UnknownVT Veteran Member Join Date: Sep 2007 Location: USA Posts: 1,812	Originally posted by magnum1 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
JeffJS Inactive Account Join Date: Aug 2008 Location: Michigan, USA Photos: Gallery \| Albums Posts: 7,484	Originally posted by UnknownVT 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
magnum1 Inactive Account Join Date: Oct 2007 Location: Niagara, Wisconsin U.S. of Ay. Posts: 394	Originally posted by UnknownVT 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
magnum1 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.