Quote:
Originally Posted by baileys2611
This I think is the source of my confusion. How is it possible to remove a dust mote, which is a dark spot on the image, & end up with an image in it's place?
In other words, how do you take a space which has no information and replace it with information?  |
You dither. Meaning you offset each subs by a number of pixels. When the star registration is done the dust will be in different spots and should be rejected. Flats will get rid of dust motes as well but won't make up for missing data. Although usually the dust is out of focus so star light still goes through. Unless you have a big dark blotch on your sensor.