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12-25-2007, 06:09 PM   #1
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Pentax K100 Dark Image

I have a K100 and it does not seen to matter what lens is connected to the camera. I can be using the camera for many shots and it seems to be working just fine and then it will stop working and will shoot a very, very dark image. I will not have moved or changed anything. A trick that seems to work to fix it, is to take the lens off, shoot a picture with no lens and replace the lens. This process often enables the camera to work again for a few shots. However it will stop working again soon. I have tried to find some pattern in this process and have not found one. The camera is making a much louder static noise then it have in the past...

12-25-2007, 07:04 PM   #2
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Welcome to Pentax Forums Camper.

Sorry that I can't really help you, however I'm wondering if it's somehow memory card related
If you have a second card I'd install it next time and see if your problem goes away.
And if you don't have a spare it's a good investment, just in case something happens to your old one.

If a memory card doesn't solve your problems I hope that it's under warranty. I'd take it back to the store you got it from if it is.
12-25-2007, 07:28 PM   #3
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Good Thinking! I did not think of that however, I tried a new memory card and it still did the same thing. I am concerned to take it in.. It have been just a year since purchase so I do not believe it will be covered and it is so inconsistant that I do not know when the problem will show or how often. I just shot off 10 shots. 1) Great, 2) Great, 3) Dark, 4) Dark, 5) Great, 6)Great, 7) Great, 8)Great, 9) Dark, 10) Great... I did not change anything these were 10 Rapid Fire
12-25-2007, 08:07 PM   #4
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I thought Stu's idea might be it. You might want to clean the lens contacts on the lens and camera mount. The Static noise is also a concern. What lens are you using?

12-25-2007, 09:11 PM   #5
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QuoteOriginally posted by Camper0414 Quote
I have a K100 and it does not seen to matter what lens is connected to the camera. I can be using the camera for many shots and it seems to be working just fine and then it will stop working and will shoot a very, very dark image. I will not have moved or changed anything. A trick that seems to work to fix it, is to take the lens off, shoot a picture with no lens and replace the lens. This process often enables the camera to work again for a few shots. However it will stop working again soon. I have tried to find some pattern in this process and have not found one. The camera is making a much louder static noise then it have in the past...
Do you have another lens to try? The "static noise" might be a failing mechanical connection in the lens aperture mechanicals. If not, see if you can replicate the problem either with the lens wide open or at minimum aperture.
12-26-2007, 12:53 PM   #6
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The Original Post says it happens no matter what lens is attached and it does not sound like a battery problem.

So it must be camera related. One thing worth trying is resetting the camera in case it is in a funny mode and confused. On my K100D there are two resets, at the end of the Setup menu and the Custom menu. A long shot, but takes only a moment to try. I've "fixed" a few of my sister's Fuji's that way.
12-26-2007, 02:01 PM   #7
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Another Pentax forum had a similar thread recently, or it might not be related at all. The spring that activates the aperture lever had slipped past its retainer. Apparently, this also resulted in the "on-off collar" feeling "odd" when he tried to activate the DOF preview. Can't find the thread right now, though...
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