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07-06-2016, 04:15 PM   #31
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Yep problem here too. It's in the raw. I've found a thread about a similar problem: https://www.pentaxforums.com/forums/6-pentax-dslr-discussion/8610-strange-problems-my-k10d.html

must be something with the bayer demosaicing going wrong I guess. Did you try a reset?

07-06-2016, 06:28 PM   #32
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QuoteOriginally posted by D1N0 Quote
I've found a thread about a similar problem: Strange problems with my K10D

must be something with the bayer demosaicing going wrong I guess. Did you try a reset?
The linked problem is classic Bayer demosaicing artifact and is not something that is addressable in-camera. (The demosaicing process is done by the RAW converter.) The OP's issue looks more like a strong magnetic field was present when the exposure was made or a hardware fault. Wrist magnets for arthritis?


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07-06-2016, 07:27 PM   #33
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I tried a factory reset, and while it looks just a little better, it's still there, and any perceived improvement is likely in my head. I thought about interference too, but can't figure out what it would be. There are no magnets near the camera. It's starting to look grim for my old K10D. ☹️
07-06-2016, 08:18 PM   #34
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If some people can see this effect, some can barely see it, and some can't see it at all -- could differences in viewers' computer monitors be contributing to it...or in some cases, not? Whatever our cameras produce, what we share here is always intermediated by the matrix of our monitors and the electronics behind them.

07-06-2016, 10:15 PM   #35
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QuoteOriginally posted by goatsNdonkey Quote
If some people can see this effect, some can barely see it, and some can't see it at all -- could differences in viewers' computer monitors be contributing to it...or in some cases, not?
Just changing the brightness/contrast on the monitor makes it come/go away. That's why a RAW processed by another system would help to isolate where the artifact is coming from.
07-07-2016, 08:20 AM   #36
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To clarify, I can confirm the presence of the noise with the on-camera LCD by zooming in (even as limited as an LCD from 2006 is), and can equally see it on my iPhone and computer monitor, so I'm pretty convinced that there's a problem with the CCD. I can still get good photos when lighting conditions are ideal, or when my apeture, shutter and ISO balance are in a sweet spot, but the pattern seems to appear more and more -- particularly when I've just taken an otherwise good shot. Maybe I'm just noticing it more, though. Very frustrating because I love everything else about the camera and the pictures it takes, so it's driving me insane (even though it's a 10-year-old body that currently goes for $100 and I probably shouldn't be so attached)!
07-07-2016, 08:33 AM   #37
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was it always in the pictures you took with the camera? Or did it develop at some point?
07-07-2016, 03:29 PM   #38
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QuoteOriginally posted by D1N0 Quote
was it always in the pictures you took with the camera? Or did it develop at some point?
Looking back at some old photos, it was always there. Apparently I wasn't sensitive to it back then -- just chalked it up to a digital camera's response to poor lighting and my own lack of skill when my standards were lower and I was less confident in my ability to use a DSLR. I didn't really get sensitive to it until I got a fast 35mm manual prime, which magnified the issue. When I zoomed in on a new image to see how sharp I was able to get the shot, I noticed the digital noise. I think I bought the K10D a bit too quickly out the gate and got a bad example, but it took me a decade to realize it. Too bad it didn't come with a 10-year warranty!

07-07-2016, 03:53 PM   #39
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QuoteOriginally posted by Mister Mike Quote
To clarify, I can confirm the presence of the noise with the on-camera LCD by zooming in (even as limited as an LCD from 2006 is), and can equally see it on my iPhone and computer monitor, so I'm pretty convinced that there's a problem with the CCD. I can still get good photos when lighting conditions are ideal, or when my apeture, shutter and ISO balance are in a sweet spot, but the pattern seems to appear more and more -- particularly when I've just taken an otherwise good shot. Maybe I'm just noticing it more, though. Very frustrating because I love everything else about the camera and the pictures it takes, so it's driving me insane (even though it's a 10-year-old body that currently goes for $100 and I probably shouldn't be so attached)!
Look if you are that attached find a used sensor online and replace it.To be blunt i don't even see why it is bothering you.I think you are obsessing, like Adam said get a k-50 end of story.
07-07-2016, 04:23 PM   #40
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QuoteOriginally posted by niceshot Quote
Look if you are that attached find a used sensor online and replace it.To be blunt i don't even see why it is bothering you.I think you are obsessing, like Adam said get a k-50 end of story.
At this point it's more about solving the mystery, but now that I'm coming to terms with the bad sensor (and replacing it is probably more of an ordeal than upgrading), I'll start looking for a replacement body.
07-07-2016, 04:48 PM   #41
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QuoteOriginally posted by Mister Mike Quote
At this point it's more about solving the mystery, but now that I'm coming to terms with the bad sensor (and replacing it is probably more of an ordeal than upgrading), I'll start looking for a replacement body.
no big deal , but i think it is still very usable
07-07-2016, 06:01 PM   #42
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If you really love the K10D, some nice low-count examples have been turning up in the Marketplace for <$150. I think KEH had a few in stock as well IIRC. Repairing yours will not be very cost-effective.
07-07-2016, 06:59 PM   #43
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What version firmware are you running? Apparently the earlier versions had issues with noise or banding at longer exposures, I wonder if upgrading the firmware could rule out a software issue.
07-07-2016, 08:05 PM   #44
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QuoteOriginally posted by ChristianRock Quote
What version firmware are you running? Apparently the earlier versions had issues with noise or banding at longer exposures, I wonder if upgrading the firmware could rule out a software issue.
I'm running 1.3.1, which is the latest (unfortunately).
07-08-2016, 03:24 AM   #45
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QuoteOriginally posted by niceshot Quote
Look if you are that attached find a used sensor online and replace it.To be blunt i don't even see why it is bothering you.I think you are obsessing, like Adam said get a k-50 end of story.
We may as well ask why you are obsessed with DIY fixing your K-50. Send it out for repair, buy another one or K-S2 or K-70. End of Story
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