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Stuck pixels on a Canon PowerShot S70
I just recently purchased a Canon PowerShot S70 and I noticed two pixels
that are stuck; one is stuck on white (1417x973) the other is stuck at red (1968x682). I noticed the one that is stuck on white while zooming in on a photo on my computer using Phoshop Elements 2. After I found that stuck pixel, I took a manual picture in a dark room (1/125, F2.8, No Flash) and confirmed the stuck white pixel and found a stuck red pixel. Could this be a problem with the optics or the CCD? Is it considered normal to have one or two pixels stuck on a 7.1 Megapixel camera? Thank you for any help/advice. Please reply by removing "spamless" . Thank you again, Peter |
#2
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Peter wrote: I just recently purchased a Canon PowerShot S70 and I noticed two pixels that are stuck; one is stuck on white (1417x973) the other is stuck at red (1968x682). I noticed the one that is stuck on white while zooming in on a photo on my computer using Phoshop Elements 2. After I found that stuck pixel, I took a manual picture in a dark room (1/125, F2.8, No Flash) and confirmed the stuck white pixel and found a stuck red pixel. Could this be a problem with the optics or the CCD? Is it considered normal to have one or two pixels stuck on a 7.1 Megapixel camera? Problem is the sensor. And no, it is not normal, in my opinion, to have such pixels in a 1/125 sec exposure. If you want to quatify this further, there is a free program (DeadPixelTest) to do so. Just shoot in a dark area with the lens cap on at a few values of exposure time and see what you get. Phil |
#3
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Peter wrote: I just recently purchased a Canon PowerShot S70 and I noticed two pixels that are stuck; one is stuck on white (1417x973) the other is stuck at red (1968x682). I noticed the one that is stuck on white while zooming in on a photo on my computer using Phoshop Elements 2. After I found that stuck pixel, I took a manual picture in a dark room (1/125, F2.8, No Flash) and confirmed the stuck white pixel and found a stuck red pixel. Could this be a problem with the optics or the CCD? Is it considered normal to have one or two pixels stuck on a 7.1 Megapixel camera? Problem is the sensor. And no, it is not normal, in my opinion, to have such pixels in a 1/125 sec exposure. If you want to quatify this further, there is a free program (DeadPixelTest) to do so. Just shoot in a dark area with the lens cap on at a few values of exposure time and see what you get. Phil |
#4
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Phil Wheeler wrote:
Peter wrote: I just recently purchased a Canon PowerShot S70 and I noticed two pixels that are stuck; one is stuck on white (1417x973) the other is stuck at red (1968x682). I noticed the one that is stuck on white while zooming in on a photo on my computer using Phoshop Elements 2. After I found that stuck pixel, I took a manual picture in a dark room (1/125, F2.8, No Flash) and confirmed the stuck white pixel and found a stuck red pixel. Could this be a problem with the optics or the CCD? Is it considered normal to have one or two pixels stuck on a 7.1 Megapixel camera? Problem is the sensor. And no, it is not normal, in my opinion, to have such pixels in a 1/125 sec exposure. If you want to quatify this further, there is a free program (DeadPixelTest) to do so. Just shoot in a dark area with the lens cap on at a few values of exposure time and see what you get. Phil Thank you Phil, I will try to find "DeadPixelTest" and try it out. Please reply by removing "spamless" . Thank you again, Peter |
#5
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Phil Wheeler wrote:
Peter wrote: I just recently purchased a Canon PowerShot S70 and I noticed two pixels that are stuck; one is stuck on white (1417x973) the other is stuck at red (1968x682). I noticed the one that is stuck on white while zooming in on a photo on my computer using Phoshop Elements 2. After I found that stuck pixel, I took a manual picture in a dark room (1/125, F2.8, No Flash) and confirmed the stuck white pixel and found a stuck red pixel. Could this be a problem with the optics or the CCD? Is it considered normal to have one or two pixels stuck on a 7.1 Megapixel camera? Problem is the sensor. And no, it is not normal, in my opinion, to have such pixels in a 1/125 sec exposure. If you want to quatify this further, there is a free program (DeadPixelTest) to do so. Just shoot in a dark area with the lens cap on at a few values of exposure time and see what you get. Phil Thank you Phil, I will try to find "DeadPixelTest" and try it out. Please reply by removing "spamless" . Thank you again, Peter |
#6
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Peter wrote:
Phil Wheeler wrote: Peter wrote: I just recently purchased a Canon PowerShot S70 and I noticed two pixels that are stuck; one is stuck on white (1417x973) the other is stuck at red (1968x682). I noticed the one that is stuck on white while zooming in on a photo on my computer using Phoshop Elements 2. After I found that stuck pixel, I took a manual picture in a dark room (1/125, F2.8, No Flash) and confirmed the stuck white pixel and found a stuck red pixel. Could this be a problem with the optics or the CCD? Is it considered normal to have one or two pixels stuck on a 7.1 Megapixel camera? Problem is the sensor. And no, it is not normal, in my opinion, to have such pixels in a 1/125 sec exposure. If you want to quatify this further, there is a free program (DeadPixelTest) to do so. Just shoot in a dark area with the lens cap on at a few values of exposure time and see what you get. Phil Thank you Phil, I will try to find "DeadPixelTest" and try it out. Please reply by removing "spamless" . Thank you again, Peter I D/Led DeadPixelTest (http://www.starzen.com/imaging/deadpixeltest.htm) and it confirmed the stuck pixels. I then returned the camera to Best Buy and got a replacement without a problem. I have tested the new camera with DeadPixelTest and it does not appear to have any stuck pixels. Along the way I stumbled onto an article about stuck/hot pixels that I found very informative: http://webpages.charter.net/bbiggers...ot_pixels.html Please reply by removing "spamless" . Thank you again, Peter |
#7
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Peter wrote:
Phil Wheeler wrote: Peter wrote: I just recently purchased a Canon PowerShot S70 and I noticed two pixels that are stuck; one is stuck on white (1417x973) the other is stuck at red (1968x682). I noticed the one that is stuck on white while zooming in on a photo on my computer using Phoshop Elements 2. After I found that stuck pixel, I took a manual picture in a dark room (1/125, F2.8, No Flash) and confirmed the stuck white pixel and found a stuck red pixel. Could this be a problem with the optics or the CCD? Is it considered normal to have one or two pixels stuck on a 7.1 Megapixel camera? Problem is the sensor. And no, it is not normal, in my opinion, to have such pixels in a 1/125 sec exposure. If you want to quatify this further, there is a free program (DeadPixelTest) to do so. Just shoot in a dark area with the lens cap on at a few values of exposure time and see what you get. Phil Thank you Phil, I will try to find "DeadPixelTest" and try it out. Please reply by removing "spamless" . Thank you again, Peter I D/Led DeadPixelTest (http://www.starzen.com/imaging/deadpixeltest.htm) and it confirmed the stuck pixels. I then returned the camera to Best Buy and got a replacement without a problem. I have tested the new camera with DeadPixelTest and it does not appear to have any stuck pixels. Along the way I stumbled onto an article about stuck/hot pixels that I found very informative: http://webpages.charter.net/bbiggers...ot_pixels.html Please reply by removing "spamless" . Thank you again, Peter |
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