Questions tagged [hot-pixels]

sensor pixels which appear brighter than surrounding pixels

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7
votes
1answer
1k views

What's the best way to deal with hot/stuck pixels in long exposure night photographs?

I discovered red/blue/white pixels on my night photographs tonight. Trying to confirm this, I took a black image with the lens on and indeed I saw a whole lot of them (I didn't count them but at least ...
2
votes
2answers
8k views

How to prevent hot pixels? [duplicate]

I've just returned from a trip. One of the locations was very dark site. I took a photo with 4 minutes exposure for the foreground. The photo came out unusable. There are so many red, green, and ...
8
votes
5answers
17k views

Why is my camera showing a lot of stuck red and white pixels?

After shooting for one hour with my Rebelt2i + Tamron 17-55 f2.8, I went back home and checked pictures on my computer. For every single picture, there are a lot of 'dead' pixels at the same location....
14
votes
2answers
4k views

Should I be concerned about sensor heat and the development of hot pixels?

Since I shoot a lot of pictures in Live View mode and from time to time I do some short movies, I've developed a paranoid sensation that I'm going to burn the sensor. I'm aware that live view mode ...
23
votes
9answers
10k views

How do I remove dead pixels from a digital photo?

I have a Nikon D90 and until recently it has been working just perfectly. While viewing a set of photos I had taken I'm starting to find these little nasty dead pixels: alt text http://img225....
1
vote
3answers
1k views

What are these purple pixels on my Canon 60D and how do I get rid of them?

I bought this used Canon 60D for a reasonable price, however, I get these purple pixels in the top right of my image. Even though I can work around it, it is very annoying. I've tried a lot of ways to ...
8
votes
3answers
3k views

Hot, stuck, or dead pixels. What's the difference?

What is the difference between hot, stuck, and dead pixels with regards to a camera's image sensor? What can cause each to occur? What can be done to reduce their influence on a photo?
13
votes
1answer
472 views

Are hot pixels just one pixel?

I have been taking a few astro photos on a very high ISO, and have found what I think to be a few hot pixel. I though at first that I had managed to get a few very sharp pic of some red and blue stars....
2
votes
3answers
590 views

How do I prevent and/or remove hot pixels in my shots?

I am getting some noise in my shots on the black. I wondered if this can be something i can prevent or do I need to clean the image sensor? I am using a Canon T3i/600d/Kiss X5. The shot was done at ...
15
votes
4answers
15k views

Does long exposure cause hot pixels in photos?

Today, I was taking some shots of night sky. For each, I had 20 sec exposure. During picture review, I found a red dot which is referred as "Hot Pixel" according to some people on the Internet. ...
4
votes
2answers
838 views

What is this dead pixel problem really called?

On all photos from my last vacation I see this red point. It appears on in-camera JPGs as well as on RAW files. A see a red pixel in the same position on all pictures. How is this problem called? Is ...
6
votes
2answers
355 views

Why some pixels become hot pixels?

What is the physical explanation to hot pixels? What happens to the sensor when a good pixel become an hot pixel?
3
votes
0answers
353 views

Why do I have a red dot in every photo? [duplicate]

Possible Duplicate: Why is my camera showing a lot of stuck red and white pixels? Every picture that I took today have a red dot on the same place in every photo. It looks like a monitor "pixel ...