This book shows amateur astronomers how to use one-shot CCD cameras, and
how to get the best out of equipment that exposes all three color images
at once. Because this book is specifically devoted to one-shot imaging,
"One-Shot Color Astronomical Imaging" begins by looking at all the
basics - what equipment will be needed, how color imaging is done, and
most importantly, what specific steps need to be followed after the
one-shot color images are taken.
What is one-shot color imaging? Typically, astronomical cooled-chip CCD
cameras record only one color at a time - rather like old-fashioned
black & white cameras fitted with color filters. Three images are taken
in sequence - in red, blue, and green light - and these are then merged
by software in a PC to form a color image. Each of the three images must
be taken separately through a suitable color filter, which means that
the total exposure time for every object is more than tripled. When
exposure times can run into tens of minutes or even hours for each of
the three colors, this can be a major drawback for the time-pressed
amateur.
"One-Shot Color Astronomical Imaging" describes the most cost-effective
and time-efficient way for any amateur astronomer to begin to photograph
the deep-sky.