Canon 70D Are these stuck or dead pixels? How can these be fixed?

I have taken a couple of long exposure images at night and during PP, I noticed some Red, Blue, Green pixels in my shots all at the same location. About 18 in all. Not a big deal. These only seem to be an issue for me when I am shooting long exposures as it can sometimes interfere with stars.

I have tried the Manual Sensor Cleaning method, twice, about 1 min each, but no change in seeing these permanent pixels.

For more controlled tests, I had the lens cap on, ISO 100, f3.5, 20" exposures. All show same results.

I then put Long Exposure NR to On, for same shot as above and the pixels are gone. I can default to this setting, but there are times when I do not want to wait for NR to happen as I want to take multiple shots in succession (ie time lapse).

Here is what I am seeing. NOTE: This is a RAW converted to JPG and the only PP done was to slide the right side histogram to the left about 25% in DPP and pushed brightness.

Are these Dead or Stuck? Fixable?

Those are hot pixels and they're only 'fixable' through software solutions. I've never done it but I'm sure you could use photoshop to subtract them out of a scene, and you've already found one way to let the camera deal with it. My guess is that most cameras will have a few (mine do), but that they rarely are even noticeable. I'm sure others will be along soon with more experience than me in using various software to deal with them.

There is an article in the latest EOS magazine that discussing this very subject. Here is a link to the article http://origin.misc.pag​esuite.com …d8d-9d5f-34f68e580183.pdf.

If the link doesn't work, PM me and I will try to email it to you.

Search POTN for 'hot pixels'. This has been done several times.