K-7 Returned with faulty sensor
Posted 16/07/2009 - 18:43
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I've read elsewhere that this is showing up on a number of K-7's. Amazon US are said to have returned all their stock to Pentax because of the number of complaints they were having to deal with. Suggestion is that the problem was confined to one early batch of cameras.
Somehow thought to be associated with sensor heating/use of video recording.
Somehow thought to be associated with sensor heating/use of video recording.
Posted 16/07/2009 - 18:45
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chirpy wrote:
George, I remember that happening. My main doubt with that is that the problem is reproducible only under certain strict conditions rather than a general intermittent or continuous problem under varying circumstances. Prior to playing with video I have shot several hundred images, none of which show this.
Yes, I'm not suggesting it's the same problem, just that it pays to consider all possibilities.George, I remember that happening. My main doubt with that is that the problem is reproducible only under certain strict conditions rather than a general intermittent or continuous problem under varying circumstances. Prior to playing with video I have shot several hundred images, none of which show this.
G
Keywords: Charming, polite, and generally agreeable.
Posted 16/07/2009 - 18:50
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George Lazarette wrote:
Yes, I'm not suggesting it's the same problem, just that it pays to consider all possibilities.
G
When I get the replacement and test I will be sure to use a different PC as well to rule out as many things as I can. I did check with two different makes of SDHC card to that end.
Yes, I'm not suggesting it's the same problem, just that it pays to consider all possibilities.
G
Posted 16/07/2009 - 18:52
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I did read some where about the reason for the delay in the K7 release was to do with temperature problems with the sensor, so it may not be cured yet.
Posted 16/07/2009 - 21:45
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There is some stuff about this on DPreview - the line shows up after doing some video, so seems to be linked to a temperature problem
Andy
EDIT: probably following use of liveview. The DPR forum links across to a discussion on pentaxforums
Andy
EDIT: probably following use of liveview. The DPR forum links across to a discussion on pentaxforums
Andy
Posted 16/07/2009 - 21:56
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alfpics wrote:
There is some stuff about this on DPreview - the line shows up after doing some video, so seems to be linked to a temperature problem
Andy
EDIT: probably following use of liveview. The DPR forum links across to a discussion on pentaxforums
Thank you for the information.
There is some stuff about this on DPreview - the line shows up after doing some video, so seems to be linked to a temperature problem
Andy
EDIT: probably following use of liveview. The DPR forum links across to a discussion on pentaxforums
Posted 16/07/2009 - 22:34
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Jonathan, sorry to hear your K-7 has developed this problem. I think ours must of been from the same batch that SRS had.
So far (touch wood) mine doesn't exhibit the same issue. Having seen your post I gave mine several 5 minute cycles of live view and video and it seems OK.
Anyway I hope your replacement unit arrives quickly and operates as it should.
So far (touch wood) mine doesn't exhibit the same issue. Having seen your post I gave mine several 5 minute cycles of live view and video and it seems OK.
Anyway I hope your replacement unit arrives quickly and operates as it should.
Posted 17/07/2009 - 08:31
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It's good to know that yours is OK as they would have been from the same batch. It seems that those that have had theirs replaced haven't had a recurrence of the issue.
Posted 17/07/2009 - 09:57
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G[/quote]When I get the replacement and test I will be sure to use a different PC as well to rule out as many things as I can. I did check with two different makes of SDHC card to that end.[/quote]No need to use a different PC if it was your PC or Monitor you would have had the same problem before the K-7.
Tel,
Posted 17/07/2009 - 10:00
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ttk wrote:
No need to use a different PC if it was your PC or Monitor you would have had the same problem before the K-7.
Faulty reasoning. My PC worked fine for three years, then developed the fault overnight.No need to use a different PC if it was your PC or Monitor you would have had the same problem before the K-7.
G
Keywords: Charming, polite, and generally agreeable.
Posted 17/07/2009 - 12:44
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Greytop wrote:
I sure you know that all you need to do is zoom the image in/out or reduce the window slightly to move the image across the monitor to determine which has the fault.
Very unlikely to be your PC Jonathan.
In my case, the lines were imposed on the images when they were saved. So they became part of the image.I sure you know that all you need to do is zoom the image in/out or reduce the window slightly to move the image across the monitor to determine which has the fault.
Very unlikely to be your PC Jonathan.
However, as stated earlier, I only mentioned this as a possibility. If more than one person has this problem (and it seems they do) then it is clearly down to the camera.
G
Keywords: Charming, polite, and generally agreeable.
Posted 17/07/2009 - 16:15
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Sorry to hear that you are experiencing this problem, There seem`s to be a rash of similar cases with DSLR`s from all the manufacturers though usually the line is RED in colour rather than the green one that you have.
Canon issued an upgrade for one of it`s top of the range Camera`s soon after launch (As well as for the black dot problem) But Sony, Olympus and Nikon have not been immune.
I hope that you get it sorted soon.
Regards - Pete
Canon issued an upgrade for one of it`s top of the range Camera`s soon after launch (As well as for the black dot problem) But Sony, Olympus and Nikon have not been immune.
I hope that you get it sorted soon.
Regards - Pete
Posted 17/07/2009 - 16:37
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Thanks Pete. I've heard that Pentax is very much aware of the issue (it's been mentioned by Pentax Germany), but it remains to be seen what they do about it. Their recommendation is apparently to let it cool down afterwards , which is hardly reassuring for what is essentially a design flaw if accepted.
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10412 posts
18 years
Dordrecht,
the Netherlands
It stayed in the same place. It seems related to the temperature of the sensor. I tested with a short video and it was fine. With a longer video is showed this problem. It does go away after a short while, presumably after the sensor has cooled down a little. I didn't try a simple off/on again. Part of the problem was that it wasn't immediately apparent on the LCD only after downloading and viewing the images. I can't do any further tests as it's now in the post
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
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