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View Poll Results: Is your K5d sensor stained?
YES - There are stains on my sensor 19356.43%
NO - My sensor has no stains 14943.57%
Voters: 342. You may not vote on this poll

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12-05-2010, 08:47 PM   #1
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Stains on your K5d sensor poll

As seen in a few threads, sadly some K5d seem to have come out of the factory with stains on the sensor which are visible at f11 or above.

Please only answer the poll if you have tested your camera.

If yours has a stain, put the serial number in our serial database, and mark it as damaged: Pentax K-5 Serials - Pentax Serial Number Database - PentaxForums.com



Shoot a well lit white background (or the sky) at f11 or above and low iso. Look at the resulting photo full size towards the middle of the frame.

List your s/n and if your camera is clean or stained.

This thread is just to get an idea of the % of affected cameras and is not a discussion thread, there are already a few excellent threads on the subject. For discussion check out https://www.pentaxforums.com/forums/pentax-k-5-forum/124985-advanced-stainology.html and https://www.pentaxforums.com/forums/pentax-k-5-forum/124799-some-k-5s-shipped...aa-filter.html


Last edited by ve2vfd; 12-05-2010 at 08:53 PM.
12-05-2010, 08:50 PM   #2
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Let me start the ball, my sensor is sadly stained



S/N: 3842568 bought in Canada
12-05-2010, 09:06 PM   #3
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No problem with K-5

Serial no 3823936

Just a couple of dust bunnies that left after cleaning.
12-05-2010, 10:22 PM   #4
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Um whats the best way to check? I am scared now!

12-05-2010, 10:26 PM   #5
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Yep, blobs scattered around plus a line of small spots smack in the middle of the frame. #3823875


EDIT - This copy exchanged with Amazon after 55 days. New one is clean. #3909188

Last edited by imtheguy; 12-11-2010 at 07:57 AM.
12-05-2010, 10:58 PM   #6
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No stain on my K-5 sensor

No sign of stains on my K-5. Serial # 3894706
12-05-2010, 11:47 PM   #7
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There could be, and then again, maybe not. It may be just dust.
I have said yes, but am not convinced it is a stain, though having trouble blowing these marks off the sensor.

Serial No.3842409

???????????????????

Nevertheless, I am quite happy with my K5
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12-06-2010, 04:17 AM   #8
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Hey,
no stain for me. i've check 3 times, all clear !

SN : 3828, bought in France.

Edit : That's strange, i vote no, but there is always 7 vote for the "no"... My vote didn't count ?

12-06-2010, 04:43 AM   #9
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stain on my k-5 sn:3849889

Last edited by ZoT; 12-07-2010 at 09:36 AM.
12-06-2010, 04:44 AM   #10
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QuoteOriginally posted by Bramela Quote
There could be, and then again, maybe not. It may be just dust.
I have said yes, but am not convinced it is a stain, though having trouble blowing these marks off the sensor.
Same here. I have two marks, almost in the exact same spot as yours that don't seem to want to let go despite multiple attempts to blow them away.

#3823993
12-06-2010, 05:05 AM   #11
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QuoteOriginally posted by Bramela Quote
There could be, and then again, maybe not. It may be just dust.
I have said yes, but am not convinced it is a stain, though having trouble blowing these marks off the sensor.

Serial No.3842409

???????????????????

Nevertheless, I am quite happy with my K5
Mine's got one spot, almost exactly the same place as yours
12-06-2010, 05:24 AM   #12
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Mine has a small row of marks similar to others which show up at high f values. There is a blemish on the sensor which is visible to the naked eye.
Obviously my concerns are that it might get worse and that if I wanted to sell it in a year or so the used value would be badly dented.

Serial number 38226xx

I bought it at the end of October from SRS Microsystems in UK They are a pentax dealer. I 'phoned today and they are waiting from a response from Japan. It seems that the problem has been acknowledged as a 'known issue' and they are waiting for intructions whether to replace or repair.

Very glad I bought from SRS. It is clear that customer satisfaction is very important to them.

Allan
12-06-2010, 05:33 AM   #13
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Mine is a yes (picture posted in the other thread). Good news, I just got off the phone with my seller (London Camera Exchange) and they apparently have a clean one in stock and they're swapping mine out for that one today. Nice.
12-06-2010, 06:00 AM   #14
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One word: NOOOOOOOO!!! (means: yes, I have stains.)

snr: 3822871
12-06-2010, 06:20 AM   #15
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I do too, just one though so I think I'll just live with it.

SN: 3827069
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