|
A dark ( or a stack of darks = Master dark ) is used to offset the hot pixels and possible sensor flaws that show up when you stack your 'lights' which are the actual object pix you take.
In DSS you register and stack the lights ( images ) and the process uses the darks to fill in any hotpixel false readings. Therefore you get a relatively clean final image. (It ain't perfect ! ).
I'm still getting the hang of it all myself, there are just so many possible controls and permutations to manipulate the pictures that it can be real confusing. Practice makes perfect they say in which case I need a LOT of practice. LOL
|