Dirty sensor on my K7. Help!

AlexFord
Posted 10/04/2011 - 18:44 Link
Hey there, I was out in the beautiful weather today and took along my camera on a walk. I've had dust spots on the sensor before but they have largely been removed with a few uses of the removal tool on board. However, having used the camera today images that include sky have been absolutely covered in dust. I'm concerned some of the blotches may even be damage. Have a look.

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I love cameras, a lot still to learn!
Edited by AlexFord: 10/04/2011 - 19:06
gartmore
Posted 10/04/2011 - 18:48 Link
I've always set my K20 to use dust removal on start up and have never hac
had any dust on my sensor in 15 months of professional use.

I think a wet clean is in order.
Ken
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -
AlexFord
Posted 10/04/2011 - 18:52 Link
gartmore wrote:
I've always set my K20 to use dust removal on start up and have never hac
had any dust on my sensor in 15 months of professional use.

I think a wet clean is in order.
Yeah, I have dust removal set for start up. I'm worried these may actually be stuck in one position as I repeated the removal several times and the photos taken after follow the same pattern.

Can you recommend any kits for wet cleaning or should I contact a dealer? I'm not sure how confident I am about doing it myself.
I love cameras, a lot still to learn!
Edited by AlexFord: 10/04/2011 - 18:54
SteveEveritt
Posted 10/04/2011 - 19:02 Link
I have the same thing crop up regularly on my K-7 too although mine are only visible at extreme close up and appear as small round dots surrounded by a halo of white, I'm starting to contemplate sending it to Pentax for a service.
But for now I use these from SRS
Flickr
"Life is what happens to you while you're busy making other plans" (John Lennon)
Edited by SteveEveritt: 10/04/2011 - 19:04
Smeggypants
Posted 10/04/2011 - 22:59 Link
Wet cleaning is easy. enable mirror lock up and just drop some fluid onto the swab and wipe across the sensor a couple of times. The fluid will evaporate and bob's your uncle.

Some airborne particles are greasy and won't shake off the sensor so wet cleaning is the only way. There won't be any damage, don't worry.
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
gartmore
Posted 10/04/2011 - 23:08 Link
As above, there's nothing to be concerned about wet cleaning. The sticky hard to remove stuff is usually pollen.

I have used, in the past, Eclipse fluid and pads.

There will now be 20 or so posts recommending a huge range of equally effective remedies!
Ken
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -
Smeggypants
Posted 10/04/2011 - 23:11 Link
Take it down the Jetwash!!

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[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
AlexFord
Posted 11/04/2011 - 14:21 Link
Smeggypants wrote:
Take it down the Jetwash!!

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Haha, no need I have one at home!

Thanks for the advice guys. I'm between jobs at the moment so any kind of expensive remedy would have been impossible.
I love cameras, a lot still to learn!

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