Stains on k-5 Silver - anyone?

SteveM · 03-24-2011, 04:43 PM

Originally posted by sgrewal

Thank you smc, for setting the record straight. You are exactly right. I wasn't quite sure about how one is expected to respond to a remark like the one you quoted.

Thanks again.

There has been a lot of "debate" on the forum about that issue, so I can understand how someone might misunderstand the intent of the thread.

That Silver K-5 is going to be a keeper.

Wheatfield · 03-24-2011, 10:35 PM

Originally posted by Fontan

I wonder if I am going to end up like Scrooge. I might begin to have a series of K-5 ghost dreams and stuff.

You might just stop posting junk to the forum too.
And pigs might fly...

**Fontan** · 03-24-2011, 10:51 PM

Originally posted by Wheatfield

You might just stop posting junk to the forum too.
And pigs might fly...

OK, let the insults begin!

Kennod · 07-17-2011, 03:58 AM

This looks like the dreaded sensor stain on my shiny new silver K-5. I haven't tried cleaning the sensor (manually), but these have the same "water stain" appearance of the other examples I've seen. The stains seem to start appearing from about F5.6 and up.

Attached Images

Francis · 07-17-2011, 05:15 AM

I think that looks like dust.

Kennod · 07-17-2011, 05:51 AM

I hope so, but don't think it is. Nothing shows up on the Dust Alert check. Dust usually looks like little specks. These are much bigger.

Francis · 07-17-2011, 06:58 AM

Have you tried Dust Removal on camera? Does the stain move?

Kennod · 07-17-2011, 07:56 AM

Yes. First thing I tried. Didn't notice any change. I'll try a blower or a swab.

Andi Lo · 07-17-2011, 08:02 AM

Originally posted by Kennod

This looks like the dreaded sensor stain on my shiny new silver K-5. I haven't tried cleaning the sensor (manually), but these have the same "water stain" appearance of the other examples I've seen. The stains seem to start appearing from about F5.6 and up.

Looks like dust to me. Happens too all DSLRs I've ever used. Blower should do it good. THe String of Pearls pattern is very distinctive.

Rupert · 07-17-2011, 08:18 AM

Tired of negatives? Tired of problem hunters? Tired of having to defend against those "dreaming" of K5 problems instead of the fantastic abilities it has?

What can you do? You can go here and tell your True Story.......there are many more stories that we have yet to hear.......let's hear yours!
https://www.pentaxforums.com/forums/pentax-k-5-forum/151782-your-true-story.html

Don't get frustrated and pull all your hair out.....just go over and tell your True Story!
[IMG]

[/IMG]
Best Regards!

lammie200 · 07-17-2011, 08:48 AM

Originally posted by Kennod

Yes. First thing I tried. Didn't notice any change. I'll try a blower or a swab.

...I would stay away from touching the sensor with a swab. I had perfect success with a new K-5 by just putting it in sensor cleaning mode, turning it upside down and blasting it with a squeeze blower 10-15 times.

If the dust isn't sticky it should blow away easily.

**Schraubstock** · 07-17-2011, 07:32 PM

Originally posted by Kennod

This looks like the dreaded sensor stain

NO it does not!
Dust is a fact of life and dust will deposit itself on sensors of ALL exchangeable lens cameras. You better get used to it. It is unavoidable. But unfortunately when it is found on a PENTAX cam it will strike fear in its owner to the end of civilization and will always be associated with sensor stain. You are one of those people who has succumbed to this dreaded fear. Just clean it off and all will be fine.

By the way, the sensor is more robust than manufacturers of sensor cleaning kits want you to know because then they can sell you a $3.00 soft nylon brush for $25.00. The filter atop that sensor is incredible hard and is not easily damaged if you proceed with intelligent care. It has to be, because manufacturers know that it has to withstand regular careful cleaning over many years.

Your spots in the posted pic is nothing more than dust, crap, manure, fluff or what ever you wish to call it.

Greetings

CuriousEye · 07-17-2011, 09:20 PM

Originally posted by Kennod

This looks like the dreaded sensor stain on my shiny new silver K-5. I haven't tried cleaning the sensor (manually), but these have the same "water stain" appearance of the other examples I've seen. The stains seem to start appearing from about F5.6 and up.

hi,
i bought a black K-5 on May27th and yesterday after cleaning the sensor with the cleaning kit and test afterwards i discovered exactly the same artefacts!!!
i will send it in for service after a colleague told me that my serial number 39784...is stain affected....
:-((
my first tests after purchase did not show these artefacts, it seems they appear later..
despite these "stains" congrats to the purchase, it's a wonderfull cam

Greetings from Austria,
Sascha
:-)

Kennod · 07-18-2011, 01:48 AM

Pleasing to hear from a number of you that this is most likely only "dust, crap, manure or whatever". Didn't mean to cry wolf and get blood pressures up but looked different to dust I've had before and didn't move on first cleaning attempt. Will have another slightly more vigorous go with the blower brush. Cheers!

gtxtom · 07-18-2011, 03:22 AM

Originally posted by CuriousEye

hi,
i bought a black K-5 on May27th and yesterday after cleaning the sensor with the cleaning kit and test afterwards i discovered exactly the same artefacts!!!
i will send it in for service after a colleague told me that my serial number 39784...is stain affected....
:-((
my first tests after purchase did not show these artefacts, it seems they appear later..
despite these "stains" congrats to the purchase, it's a wonderfull cam

Greetings from Austria,
Sascha
:-)

Serial numbers do not correspond with build date. Your colleague is misinformed. You need to look at the build date using an EXIF data program like photoME. If yours looks like the picture above, it's dust not stains.

07-17-2011, 03:58 AM	#19
Kennod Senior Member Join Date: May 2011 Location: Melbourne Posts: 126	Sensor stains on my K-5 Silver! This looks like the dreaded sensor stain on my shiny new silver K-5. I haven't tried cleaning the sensor (manually), but these have the same "water stain" appearance of the other examples I've seen. The stains seem to start appearing from about F5.6 and up. Attached Images

07-17-2011, 08:48 AM	#26
lammie200 Veteran Member Join Date: Jun 2011 Location: San Francisco Photos: Albums Posts: 1,033	I'm no expert but... Originally posted by Kennod Yes. First thing I tried. Didn't notice any change. I'll try a blower or a swab. ...I would stay away from touching the sensor with a swab. I had perfect success with a new K-5 by just putting it in sensor cleaning mode, turning it upside down and blasting it with a squeeze blower 10-15 times. If the dust isn't sticky it should blow away easily.

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03-24-2011, 04:43 PM	#16
SteveM Veteran Member Join Date: Jan 2009 Location: Vancouver Island, BC, Canada Photos: Gallery Posts: 3,294	Originally posted by sgrewal Thank you smc, for setting the record straight. You are exactly right. I wasn't quite sure about how one is expected to respond to a remark like the one you quoted. Thanks again. There has been a lot of "debate" on the forum about that issue, so I can understand how someone might misunderstand the intent of the thread. That Silver K-5 is going to be a keeper.

03-24-2011, 10:35 PM	#17
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,976	Originally posted by Fontan I wonder if I am going to end up like Scrooge. I might begin to have a series of K-5 ghost dreams and stuff. You might just stop posting junk to the forum too. And pigs might fly...

03-24-2011, 10:51 PM	#18
Fontan Site Supporter Join Date: Jan 2011 Location: 5th floor Posts: 1,610	Originally posted by Wheatfield You might just stop posting junk to the forum too. And pigs might fly... OK, let the insults begin!

07-17-2011, 05:15 AM	#20
Francis Senior Member Join Date: May 2010 Location: Hilversum Photos: Gallery Posts: 215	I think that looks like dust.

07-17-2011, 05:51 AM	#21
Kennod Senior Member Join Date: May 2011 Location: Melbourne Posts: 126	I hope so, but don't think it is. Nothing shows up on the Dust Alert check. Dust usually looks like little specks. These are much bigger.

07-17-2011, 06:58 AM	#22
Francis Senior Member Join Date: May 2010 Location: Hilversum Photos: Gallery Posts: 215	Have you tried Dust Removal on camera? Does the stain move?

07-17-2011, 07:56 AM	#23
Kennod Senior Member Join Date: May 2011 Location: Melbourne Posts: 126	Yes. First thing I tried. Didn't notice any change. I'll try a blower or a swab.

07-17-2011, 08:02 AM	#24
Andi Lo Veteran Member Join Date: Jul 2008 Location: Halifax, Nova Scotia Posts: 2,924	Originally posted by Kennod This looks like the dreaded sensor stain on my shiny new silver K-5. I haven't tried cleaning the sensor (manually), but these have the same "water stain" appearance of the other examples I've seen. The stains seem to start appearing from about F5.6 and up. Looks like dust to me. Happens too all DSLRs I've ever used. Blower should do it good. THe String of Pearls pattern is very distinctive.

07-17-2011, 08:18 AM	#25
Rupert Veteran Member Join Date: Sep 2006 Location: Texas Photos: Gallery \| Albums Posts: 25,123	Tired of negatives? Tired of problem hunters? Tired of having to defend against those "dreaming" of K5 problems instead of the fantastic abilities it has? What can you do? You can go here and tell your True Story.......there are many more stories that we have yet to hear.......let's hear yours! https://www.pentaxforums.com/forums/pentax-k-5-forum/151782-your-true-story.html Don't get frustrated and pull all your hair out.....just go over and tell your True Story! [IMG] [/IMG] Best Regards!

07-17-2011, 07:32 PM	#27
Schraubstock Site Supporter Join Date: Oct 2010 Location: Melbourne Photos: Gallery Posts: 3,386	Originally posted by Kennod This looks like the dreaded sensor stain NO it does not! Dust is a fact of life and dust will deposit itself on sensors of ALL exchangeable lens cameras. You better get used to it. It is unavoidable. But unfortunately when it is found on a PENTAX cam it will strike fear in its owner to the end of civilization and will always be associated with sensor stain. You are one of those people who has succumbed to this dreaded fear. Just clean it off and all will be fine. By the way, the sensor is more robust than manufacturers of sensor cleaning kits want you to know because then they can sell you a $3.00 soft nylon brush for $25.00. The filter atop that sensor is incredible hard and is not easily damaged if you proceed with intelligent care. It has to be, because manufacturers know that it has to withstand regular careful cleaning over many years. Your spots in the posted pic is nothing more than dust, crap, manure, fluff or what ever you wish to call it. Greetings

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07-17-2011, 09:20 PM	#28
CuriousEye Forum Member Join Date: Apr 2011 Location: Upper Austria Photos: Gallery Posts: 80	Originally posted by Kennod This looks like the dreaded sensor stain on my shiny new silver K-5. I haven't tried cleaning the sensor (manually), but these have the same "water stain" appearance of the other examples I've seen. The stains seem to start appearing from about F5.6 and up. hi, i bought a black K-5 on May27th and yesterday after cleaning the sensor with the cleaning kit and test afterwards i discovered exactly the same artefacts!!! i will send it in for service after a colleague told me that my serial number 39784...is stain affected.... :-(( my first tests after purchase did not show these artefacts, it seems they appear later.. despite these "stains" congrats to the purchase, it's a wonderfull cam Greetings from Austria, Sascha :-)

07-18-2011, 01:48 AM	#29
Kennod Senior Member Join Date: May 2011 Location: Melbourne Posts: 126	Pleasing to hear from a number of you that this is most likely only "dust, crap, manure or whatever". Didn't mean to cry wolf and get blood pressures up but looked different to dust I've had before and didn't move on first cleaning attempt. Will have another slightly more vigorous go with the blower brush. Cheers!

07-18-2011, 03:22 AM	#30
gtxtom Veteran Member Join Date: Feb 2011 Location: Philly Posts: 395	Originally posted by CuriousEye hi, i bought a black K-5 on May27th and yesterday after cleaning the sensor with the cleaning kit and test afterwards i discovered exactly the same artefacts!!! i will send it in for service after a colleague told me that my serial number 39784...is stain affected.... :-(( my first tests after purchase did not show these artefacts, it seems they appear later.. despite these "stains" congrats to the purchase, it's a wonderfull cam Greetings from Austria, Sascha :-) Serial numbers do not correspond with build date. Your colleague is misinformed. You need to look at the build date using an EXIF data program like photoME. If yours looks like the picture above, it's dust not stains.