Can stuck pixels go away?

[Persian-Rice]

Hey guys I was wondering if a stuck pixel can suddenly become....................unstuck.

The reason I ask this is because I had two side-by-side pixels on the bottom left that registered purple for about 2 weeks. I had not used the camera much since it's my backup. After using it all this week, I noticed that the stuck pixels are no longer there.

I don't know if it's the colder weather now, but for whatever reason, the pixels fixed themselves. Is this something that is common? The only thing that makes sense is that the weather is colder. Or the photosite sensitivity went out of wack, then went out of wack again but in the other direction.

Cheers

[transcend]

Hey guys I was wondering if a stuck pixel can suddenly become....................unstuck.

The reason I ask this is because I had two side-by-side pixels on the bottom left that registered purple for about 2 weeks. I had not used the camera much since it's my backup. After using it all this week, I noticed that the stuck pixels are no longer there.

I don't know if it's the colder weather now, but for whatever reason, the pixels fixed themselves. Is this something that is common? The only thing that makes sense is that the weather is colder. Or the photosite sensitivity went out of wack, then went out of wack again but in the other direction.

Cheers

They are actually "hot" pixels. Temperature can make a difference on photo sensors.

[Persian-Rice]

Hey guys I was wondering if a stuck pixel can suddenly become....................unstuck.

The reason I ask this is because I had two side-by-side pixels on the bottom left that registered purple for about 2 weeks. I had not used the camera much since it's my backup. After using it all this week, I noticed that the stuck pixels are no longer there.

I don't know if it's the colder weather now, but for whatever reason, the pixels fixed themselves. Is this something that is common? The only thing that makes sense is that the weather is colder. Or the photosite sensitivity went out of wack, then went out of wack again but in the other direction.

Cheers


They are actually "hot" pixels. Temperature can make a difference on photo sensors.


A hotpixel is a photosite that is overheating. Hot pixels will appear randomly depending on several variables. Ambient temperature, ISO speed(photosite signal magnification) are to name some. A stuck pixel is a photosite that has lost proper calibration and registers as a hotpixel consistently in the same spot. This is called a "stuck" pixel, although there probably are other names for it.

there is a difference.

[chops]

Hey guys I was wondering if a stuck pixel can suddenly become....................unstuck.

The reason I ask this is because I had two side-by-side pixels on the bottom left that registered purple for about 2 weeks. I had not used the camera much since it's my backup. After using it all this week, I noticed that the stuck pixels are no longer there.

I don't know if it's the colder weather now, but for whatever reason, the pixels fixed themselves. Is this something that is common? The only thing that makes sense is that the weather is colder. Or the photosite sensitivity went out of wack, then went out of wack again but in the other direction.

Cheers


They are actually "hot" pixels. Temperature can make a difference on photo sensors.


A hotpixel is a photosite that is overheating. Hot pixels will appear randomly depending on several variables. Ambient temperature, ISO speed(photosite signal magnification) are to name some. A stuck pixel is a photosite that has lost proper calibration and registers as a hotpixel consistently in the same spot. This is called a "stuck" pixel, although there probably are other names for it.

there is a difference.

If you know that much about it, then what was the point to posting the original question?

[Persian-Rice]

Because I don't know if its possible for a screwed up photosite to fix itself, or I have experienced a miracle lol.

[Primevci]

Hey guys I was wondering if a stuck pixel can suddenly become....................unstuck.

The reason I ask this is because I had two side-by-side pixels on the bottom left that registered purple for about 2 weeks. I had not used the camera much since it's my backup. After using it all this week, I noticed that the stuck pixels are no longer there.

I don't know if it's the colder weather now, but for whatever reason, the pixels fixed themselves. Is this something that is common? The only thing that makes sense is that the weather is colder. Or the photosite sensitivity went out of wack, then went out of wack again but in the other direction.

Cheers


They are actually "hot" pixels. Temperature can make a difference on photo sensors.


A hotpixel is a photosite that is overheating. Hot pixels will appear randomly depending on several variables. Ambient temperature, ISO speed(photosite signal magnification) are to name some. A stuck pixel is a photosite that has lost proper calibration and registers as a hotpixel consistently in the same spot. This is called a "stuck" pixel, although there probably are other names for it.

there is a difference.

If you know that much about it, then what was the point to posting the original question?

lol

[transcend]

Hey guys I was wondering if a stuck pixel can suddenly become....................unstuck.

The reason I ask this is because I had two side-by-side pixels on the bottom left that registered purple for about 2 weeks. I had not used the camera much since it's my backup. After using it all this week, I noticed that the stuck pixels are no longer there.

I don't know if it's the colder weather now, but for whatever reason, the pixels fixed themselves. Is this something that is common? The only thing that makes sense is that the weather is colder. Or the photosite sensitivity went out of wack, then went out of wack again but in the other direction.

Cheers


They are actually "hot" pixels. Temperature can make a difference on photo sensors.


A hotpixel is a photosite that is overheating. Hot pixels will appear randomly depending on several variables. Ambient temperature, ISO speed(photosite signal magnification) are to name some. A stuck pixel is a photosite that has lost proper calibration and registers as a hotpixel consistently in the same spot. This is called a "stuck" pixel, although there probably are other names for it.

there is a difference.

I am aware of this, but my point was that the stuck pixel is still a hot pixel. I used to work alot with cmos sensors for some other work i did, ambient temps (especially cold frikkin canadian winters and fall) can cause them to dissappear. It will not cause them to "heal" though. It will probably come back when the ambient temperature rises, or if you shoot indoors.

If it no longer happens indoors consistently above room temperature, i am not sure what to tell you.

[declick]

I've read somewhere on the web that Nikon has already made available to the public (at least in their high end model??) a firmware/software patch to map out and "recalibrate" misbehaving pixels which may and probably will misbehave eventually after the factory calibration. Why isn't canon doing it, or to whom could we voice our opinion regarding that matter? (no luck with customer support so far, they want to charge me at least US$175.00 to remap the 2 stuck pixels on my G2, that's the price of a new 3MP camera!!!) :rolleyes:

[Longwatcher]

Having worked with digital imaging for over 20 years now, I have seen a few occasions where photo detector sites have healed themselves mysteriously without software remapping. It is very rare and I suspect some very small movement causing this just like larger electronics, but I have seen it happen once or twice on very large sensor arrays. The odds though are on your camera it is just a temperature related event, this is much more common occurance. The few healed detectors have a tendancy to fail again permantently about 6 months to a year later.

[robertwgross]

If stuck pixels are obvious, can't we just use some lubricant and wiggle them back and forth a little?

No, I guess not.

Nevermind.

---Bob Gross---

[Persian-Rice]

Well anyway, It's not there anymore, I will look at it again in a couple days.