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02/03/2006 10:23:31 AM · #1 |
Hi,
I have noticed something on one of my images today that looks like a dead pixel. On inspecting images in my camera (I have it in front of me at work), on zooming in, it is visible on the LCD in the same place in each photo.
Could it be a dust spec? I think it's too small and uniformly square.
Would a replacement sensor be covered under warranty do you think - I have only had it 4 months! Now I know it is there I will see it in every pic I take... :-(
I'm not sure if you will be able to view this link or not as it is in my Canon Image Gateway account:
//pics2.cig.canon-europe.com/priv/3234852CF29C62FAAD114C49EB2D4EAE.jpg
If you can, the pixel in question is in the shadow where Charlies cheek meets his jaw bone...
Message edited by author 2006-02-03 10:25:06. |
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02/03/2006 10:24:50 AM · #2 |
| Pixels are sooooooooo small - you'd have a hard time seeing just one dead pix on your LCD screen, so I'd suspect dust first. (or a small group of fried pix *cringes*) |
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02/03/2006 10:25:56 AM · #3 |
Originally posted by idnic:
(or a small group of fried pix *cringes*) |
Is that common? |
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02/03/2006 10:28:08 AM · #4 |
Originally posted by pix-al:
Originally posted by idnic:
(or a small group of fried pix *cringes*) |
Is that common? |
No, not at all. I was looking at the picture you posted and didn't see the spot - what area of the image is it in?? |
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02/03/2006 10:30:48 AM · #5 |
Yep, looks like a dead pixel. This is pretty common. After a period of time, a pixel or two will die off. Irritating and frustrating as it may be, camera manufacturers tend to have something that they consider to be an "acceptable number" of these before they'll fix it under warranty. You'll find it particuarly shows up when you shoot certain colors and intensities of light - sometimes it won't be noticible.
Best you can do is check to see if they'll cover it, but I've been through this twice with Nikon and have always been told that a few dead pixels are within their acceptible margin of error or something like that.
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02/03/2006 10:31:58 AM · #6 |
| oh yea, on the bottom-right of the face? It doesn't look like dust. I have 3 dust specks on my sensor at the moment and they are black and much larger. |
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02/03/2006 10:32:17 AM · #7 |
Originally posted by idnic:
Originally posted by pix-al:
Originally posted by idnic:
(or a small group of fried pix *cringes*) |
Is that common? |
No, not at all. I was looking at the picture you posted and didn't see the spot - what area of the image is it in?? |
It is just right and down a bit from centre.
If you center the sliders it should be visible bottom right of your screen... |
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02/03/2006 10:33:26 AM · #8 |
Originally posted by jodiecoston:
Yep, looks like a dead pixel. This is pretty common. After a period of time, a pixel or two will die off. Irritating and frustrating as it may be, camera manufacturers tend to have something that they consider to be an "acceptable number" of these before they'll fix it under warranty. You'll find it particuarly shows up when you shoot certain colors and intensities of light - sometimes it won't be noticible.
Best you can do is check to see if they'll cover it, but I've been through this twice with Nikon and have always been told that a few dead pixels are within their acceptible margin of error or something like that. |
OK - Thanks.
I will email the company I bought it off and see what they say... |
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02/04/2006 01:51:26 AM · #9 |
Sometimes you can have the camera serviced and they will remap your sensor. There are probably more than a few dead pixels already on your sensor that you don't know about. At the factory, they do a bit of testing that maps out the variances in sensitivity of the sensors as well as noting and dead pixels. If a pixel is dead, it applies interpolation from neighboring pixels and you, the user never see it.
It's just a fact of life and it's quite normal. Remapping a sensor can usually be done at the qualified service center if I'm not mistaken.
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02/04/2006 03:45:10 AM · #10 |
| I notice that you're in the UK. May I ask if you happened to buy your camera from Jessops? |
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02/04/2006 05:58:21 AM · #11 |
Originally posted by WaysOfSeeing:
I notice that you're in the UK. May I ask if you happened to buy your camera from Jessops? |
I didn't no. I bought it on line.
Why do you ask? |
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02/04/2006 08:52:59 AM · #12 |
| I've bought a couple of cameras from Jessops in the past that both developed dead pixels within the year. They took the cameras back and exchanged them for new ones without any problems. I was going to say that they might do the same for you. Fingers crossed anyway that the company you dealt with can do something for you. |
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02/04/2006 09:02:14 AM · #13 |
Originally posted by eschelar:
Sometimes you can have the camera serviced and they will remap your sensor. There are probably more than a few dead pixels already on your sensor that you don't know about. At the factory, they do a bit of testing that maps out the variances in sensitivity of the sensors as well as noting and dead pixels. If a pixel is dead, it applies interpolation from neighboring pixels and you, the user never see it.
It's just a fact of life and it's quite normal. Remapping a sensor can usually be done at the qualified service center if I'm not mistaken. |
Hit the nail on the head.
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