What is a darkframe and flatfield frame and how do I make them and use them.
Troy
Troy
newbie quistion
Started by troy93955, 02/04/2004 07:24PM
Posted 02/04/2004 07:24PM
Opening Post
Posted 02/04/2004 07:54PM
#1
Troy,
By chance do you have a book by Ron Wodaski The New CCD Astronomy, on imagaing? If not a really good book to get your started.
Dark frames are used to to subtract out the noise from the sub frames/ different temps and exposure times will exhibit different amounts of noise and in different places
Flats are used to subtract out dust, finger prints, anything that might be on the lens/filters/ or camera for that matter.
Mark
By chance do you have a book by Ron Wodaski The New CCD Astronomy, on imagaing? If not a really good book to get your started.
Dark frames are used to to subtract out the noise from the sub frames/ different temps and exposure times will exhibit different amounts of noise and in different places
Flats are used to subtract out dust, finger prints, anything that might be on the lens/filters/ or camera for that matter.
Mark
Funding Member
