Telescope: Skywatcher 8" f/5 Newtonian
Focus: Prime focus
Camera: SAC7B, uncooled
Exposure: 84 x 25s
Date: 30th June 2003
Processing: The usual YRGB
processing, except that the subtraction of a 'banding flat' (see the
Advanced Processing page) was done to
remove fine banding noise.
This image was caught in an hour of clear,
transparent sky between cloudy spells and in a period where the sky hadn't
been clear for weeks. The new technique to remove fine banding was
very necessary and worked well here.
Luminance layering was done to bring out