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02-14-2009, 12:52 AM   #1
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Vertical bar on the right of photos taken with K20D

I am new to the forum but lurking around for quite some time.
I have in the last month upgraded from a K100D to K20D.
The K20D was working without problems till yesterday. I was very happy with it till yesterday. And then I did a firmware upgrade to 1.01. The first three shots were good.
But all later shots have a one pixel vertical bar on the left of the photo. I have changed the lens and changed the cards, but still the vertical bar remains. It is also independent of ISO settings and whether I shoot RAW or JPEG. It comes at the same position in every photo. Now I am not sure if this is because of the firmware upgrade or that my camera behaving strangely.
Did anybody else notice this problem? Should I sent it for repair?
The second photo is a crop of the first showing clearly the vertical line.

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02-14-2009, 01:40 AM   #2
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Looks like a fault in the censor, like one whole vertical row of light sensors were dead, I would definitely take it to repair!
02-14-2009, 02:24 AM   #3
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Seems weird though that it happened within so short a time after a firmware upgrade!
02-14-2009, 03:04 AM   #4
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ya that is indeed strange. Also in the live view i see a white line in the same position that translates in to the dark one in the photo.

02-14-2009, 03:05 AM   #5
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Do you have a battery grip on the camera? Or have you tried leaving battery out overnight? Have you tried changing lenses? Try everything you can think of.
That sucks but you have to try as many things as you can first before sending it back.
02-14-2009, 04:27 AM   #6
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Yep. It does look strange.

I appreciate that the situation needs "user input". But I think that as with the vertical banding problem, we need to see a more proactive response from the makers.

PS I do not have a KxxD ....yet....., so my responses should awake Pentax from a Customer Support PIV
02-14-2009, 04:40 AM   #7
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QuoteOriginally posted by Damn Brit Quote
Do you have a battery grip on the camera? Or have you tried leaving battery out overnight? Have you tried changing lenses? Try everything you can think of.
That sucks but you have to try as many things as you can first before sending it back.
I do not have a battery grip. I did indeed left the battery out overnight. I took this picture in the morning. Lens, card etc was changed also.
02-14-2009, 04:49 AM   #8
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Its a pity. Ita a great camera and worthy upgrade to K100D. Got some good photos of my son.

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02-14-2009, 07:14 AM   #9
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Does it look like a column of pixels is missing or the image has been cut and spread apart by one pixel? I guess it's hard to tell but, either way, that's odd. This is the first post I've read on Internet forums of a column of pixels failing. I wouldn't think the sensor has failed but it's possible.

I've never loaded a firmware upgrade on a camera. Is it possible to unload the upgrade and test again? I do know this is the scenario that gives software developers headaches. They can run 1000 tests and their hot-fix or upgrade works perfectly. They release it to the customers and within a few days the 1001st test problem pops up.
02-14-2009, 08:42 AM   #10
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Electronics fail, I would send it back to Pentax with sample images and let them do the warranty service on it. If it's less than 30 days old many retailers will take it back in exchange and let them deal with the hassle.

Last edited by WheresWaldo; 02-14-2009 at 12:05 PM.
02-14-2009, 08:45 AM   #11
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Try to redo the firmware upgrade - including downloading the file again. It's a long shot that it will fix it but who knows?
02-14-2009, 09:10 AM   #12
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Oh man. It's a hardware failue. Seems like dead/broken sensor's electical scheme.
02-14-2009, 09:23 AM   #13
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QuoteOriginally posted by Ole Quote
Try to redo the firmware upgrade - including downloading the file again. It's a long shot that it will fix it but who knows?
I do not know how to revert back to the old firmware. I searched on the internet, but couldnt find the old firmware.
I will get a new SDHC card, download again the new firmware and try it again.
But I do not have much hope on it. Most likely as others have pointed out, it could be just a coincidence. This vertical line might be electronic/sensor related.
02-14-2009, 12:26 PM   #14
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QuoteOriginally posted by vivi123 Quote
I do not know how to revert back to the old firmware. I searched on the internet, but couldnt find the old firmware.
I will get a new SDHC card, download again the new firmware and try it again.
But I do not have much hope on it. Most likely as others have pointed out, it could be just a coincidence. This vertical line might be electronic/sensor related.
No way the firmware or SDHC card could fix this. You have better stuff to do. It is a broken transistor in the row addressing/read-out circuitry (at the border of the sensor CMOS chip). Get it serviced.

A firmware upgrade uses high currency to rewrite the memory. Possibly, this was the last drop to break something on the chip. Anyway, not your problem...
02-14-2009, 01:26 PM   #15
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Thank you very much all of you.
I will sent it for service.
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