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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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12-07-2010, 12:37 PM   #181
m8o
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I sure hope everyone who is voting or posting here to the affirmative are making sure the spots do not move regardless of lens used (i.e. checking with multiple lenses).

12-07-2010, 12:54 PM   #182
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I will bring mine in for warranty after christmas, i hope i can get some more information from Pentax in Holland about this matter what they will do with my camera.
12-07-2010, 02:02 PM   #183
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QuoteOriginally posted by m8o Quote
I sure hope everyone who is voting or posting here to the affirmative are making sure the spots do not move regardless of lens used (i.e. checking with multiple lenses).
Lenses? What has this to do with the lens?
12-07-2010, 02:07 PM   #184
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QuoteOriginally posted by blende8 Quote
Lenses? What has this to do with the lens?
I think the poster is suggesting that some users may claim to have the defect without ever looking at their sensor, attempting to clean, etc. If that's the case, it might be nothing more than lens dust for some.

My guess anyway.

12-07-2010, 02:08 PM   #185
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QuoteOriginally posted by blende8 Quote
Lenses? What has this to do with the lens?
If a person is drawing a conclusion by "a" photograph with "a" lens w/o testing on another lens, or exhaustive process of elimination, they would just be seeing spots on the lens.
12-07-2010, 02:12 PM   #186
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QuoteOriginally posted by blende8 Quote
Lenses? What has this to do with the lens?
Photography? What does this issue have to do with photography?

I'm surprised that nobody's been able to post a real world photograph showing the infamous string-o-pearls... Not a test shot. A photograph.

https://www.pentaxforums.com/forums/pentax-k-5-forum/125130-real-photos-not-t...ls-stains.html
12-07-2010, 02:14 PM   #187
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Have you ever seen lens dust?
Spots on the rear element look much, much different.
Very large, very soft spots.
12-07-2010, 02:38 PM   #188
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QuoteOriginally posted by blende8 Quote
Have you ever seen lens dust?
Spots on the rear element look much, much different.
Very large, very soft spots.



Yes I have seen lens dust.

Back to topic please.

12-07-2010, 02:47 PM   #189
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Much to my despair, the tested (second one) K5 at the store shows the same thin(s) ... specks! All well lined up in the upper left quadrant.
So, I am not going to buy just yet; the seller is "taking care of that".
No serial No., sorry. Wasn't my SD card either.

By the same token, is there a specific serial number range in which the faulty sensors appear?

And ... someone started another thread on that very same subject:

https://www.pentaxforums.com/forums/pentax-k-5-forum/125143-sensor-problem-re...on-thread.html

Can we at least have all of the information in ONE SINGLE thread?
This is beginning to be posted all over, and hard to follow.

Cheers.

JP
12-07-2010, 02:57 PM   #190
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To forum moderators, please leave only one thread. Now all just spaming in own threads.
12-07-2010, 03:11 PM   #191
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yeah, visible at f20 while throwing flash into wall...
serial: 3832352

12-07-2010, 03:12 PM   #192
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QuoteOriginally posted by johnmflores Quote
Photography? What does this issue have to do with photography?

I'm surprised that nobody's been able to post a real world photograph showing the infamous string-o-pearls... Not a test shot. A photograph.

https://www.pentaxforums.com/forums/pentax-k-5-forum/125130-real-photos-not-t...ls-stains.html
John: Check this it was posted in your thread mentioned above.

NaCl(yes it exsists in the real world)H2O
12-07-2010, 03:15 PM   #193
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QuoteOriginally posted by blende8 Quote
Have you ever seen lens dust?
Spots on the rear element look much, much different.
Very large, very soft spots.
Back element? I wouldn't have thought that, as the spots on the rear element look much much different; very large, very soft spots. ...Front-element. Tiny spots on the front element, when a tiny aperture is used, coupled with using the camera output where JPG is used with in-camera JPG sharpening configured on high/max thus creates a halo, looks quite similar. ...They resemble this the effect being discussed here. Just was playing the role of "mr. obvious" to say someone eager to make "I got spots" hysteria might be tricked if all they do is look at "a" shot thru "a" lens.

Last edited by m8o; 12-07-2010 at 03:25 PM.
12-07-2010, 03:20 PM   #194
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No stains, serial no. 3832041

Pentax K-5 serial no. 3832041

NO STAINS

...except for one visible dust particle (f/32, ISO 100) near the centre that was easily removed using a rocket blower.

Note: This poll is rather useless due to bias: in general people having a negative experience are more willing to participate than people that only have positive experiences.

Last edited by maartenl; 12-07-2010 at 03:31 PM.
12-07-2010, 03:22 PM   #195
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QuoteOriginally posted by NaClH2O Quote
John: Check this it was posted in your thread mentioned above.

NaCl(yes it exsists in the real world)H2O
Yup, noted and added to my thread. Not a string-of-pearls, but an issue nonetheless. It's going to be difficult, but we should to distinguish between a single defective product - no product run is 100% perfect - and a systematic issue which the string-of-pearls appears to be.

If the string-of-pearls is systematic and visible in real photos, then Pentax better respond. If it is systematic but not visible in real photos, what should Pentax do? Where is the line drawn?
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