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08-05-2011, 05:17 AM   #1
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Red Spot on Images_Dead Pixels ?

Hi friends,

I yesterday found a red dot on my images that I take using my Pentax k-x.
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Are these dead pixels ?
I read a post about pixel mapping. Will it work on this problem ?
If these are dead pixels, will it grow further?

Need you help plz.

Thanx in Advance.

08-05-2011, 05:47 AM   #2
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They do look like dead pixels and pixel mapping should deal with it. it can get worse over time but generally i think dead pixels for the most part are there from the beginning (that was always my experience in the past with various products of this type). it's a manufacturing tolerance thing, if they manufactured sensors to 100% flawless none of us could afford the camera because the sensor waste would be enormous
08-05-2011, 05:53 AM   #3
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It's common & not a big deal. Easy to fix. Leave the lens or body cap on and activate the sensor cleaning setting on the menu(raises the mirror so the sensor is exposed.) Leave the mirror up for 45 seconds or so & that should do the trick. At least it does on my K100D. Good luck! - Bobbo :-)
08-05-2011, 06:02 AM   #4
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Later cameras have pixel mapping routines that will turn off the dead ones. I don't know about your K100d (or the Kx for that matter) but the pixel mapping function is usually found in the setup menu.



08-05-2011, 10:22 PM   #5
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QuoteOriginally posted by eddie1960 Quote
They do look like dead pixels and pixel mapping should deal with it. it can get worse over time but generally i think dead pixels for the most part are there from the beginning (that was always my experience in the past with various products of this type). it's a manufacturing tolerance thing, if they manufactured sensors to 100% flawless none of us could afford the camera because the sensor waste would be enormous
Thanx Eddie. But I'm worried will it grow further as you said?
08-05-2011, 10:23 PM   #6
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Thanx

QuoteOriginally posted by eddie1960 Quote
They do look like dead pixels and pixel mapping should deal with it. it can get worse over time but generally i think dead pixels for the most part are there from the beginning (that was always my experience in the past with various products of this type). it's a manufacturing tolerance thing, if they manufactured sensors to 100% flawless none of us could afford the camera because the sensor waste would be enormous
Thanx Eddie. But I'm worried will it grow further as you said?
08-05-2011, 10:23 PM   #7
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Thanx

QuoteOriginally posted by GibbyTheMole Quote
It's common & not a big deal. Easy to fix. Leave the lens or body cap on and activate the sensor cleaning setting on the menu(raises the mirror so the sensor is exposed.) Leave the mirror up for 45 seconds or so & that should do the trick. At least it does on my K100D. Good luck! - Bobbo :-)
Thanx friend.
08-05-2011, 10:26 PM   #8
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Thanx

QuoteOriginally posted by JeffJS Quote
Later cameras have pixel mapping routines that will turn off the dead ones. I don't know about your K100d (or the Kx for that matter) but the pixel mapping function is usually found in the setup menu.

Thank You jeff for your comments.

08-08-2011, 05:40 AM   #9
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Thanks to the OP and all who posted, I easily corrected the exact same problem on my new Kx.

Regards,

Steve
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