Torsten Kötting
New member
hi there,
a friend was kind enough to provide me with 3 blackframes from the 5dmk2. Since IRIS doesnt know that cam (trying to load one doesnt really work ... surprising since it should be the same as the 1dsm3 files?) im trying to figure how to work with dcraw. From what i've read so far i use dcraw with the options -4 -D and then pnmtofits in_filename > out_filename. When doing so and loading the resulting fits-images into IRIS i get the following values with 'stats':
iso100: Sigma 6.2
iso1600: Sigma 10.4
iso6400: Sigma 41.5
but i dont know if theres values are correct ... if someone wants the raws:
http://www.pipetrap.de/stuff/5dmk2/
(and the friends websites, really nice Astro-Images: http://www.kopfgeist.com)
a friend was kind enough to provide me with 3 blackframes from the 5dmk2. Since IRIS doesnt know that cam (trying to load one doesnt really work ... surprising since it should be the same as the 1dsm3 files?) im trying to figure how to work with dcraw. From what i've read so far i use dcraw with the options -4 -D and then pnmtofits in_filename > out_filename. When doing so and loading the resulting fits-images into IRIS i get the following values with 'stats':
iso100: Sigma 6.2
iso1600: Sigma 10.4
iso6400: Sigma 41.5
but i dont know if theres values are correct ... if someone wants the raws:
http://www.pipetrap.de/stuff/5dmk2/
(and the friends websites, really nice Astro-Images: http://www.kopfgeist.com)