Hot pixels

[Karlzburg (Karl)]

What's the best way to rid the hot pixels off the image. Apart from buying a cooled camera the old dslr is running about 30 deg atm.

[raymo]

Either enable in camera long exposure noise reduction and in camera high ISO noise reduction, in which case the camera will take a dark after each exposure, or take some darks yourself at the end of the imaging session, and stack them with your normal subs[ assuming that you are using RAW, as you cannot use darks with JPEGs.]
raymo

[kosborn (Kevin)]

If you're using PixInsight then it has a module (Cosmetic Correction) to remove hot pixels.

[assbutt94]

If you use photoshop, the spot healing tool works great on hot pixels.

[multiweb (Marc)]

Originally Posted by Karlzburg

What's the best way to rid the hot pixels off the image. Apart from buying a cooled camera the old dslr is running about 30 deg atm.

Dark subtraction will take care of most, then a defect map. Read on calibration frames.

[Karlzburg (Karl)]

I use star tools, here's a bit of pre processing. I've had this pink haze before

[sil (Steve)]

thats thermal noise, in camera long exposure noise reduction is for removing that.