As a casual read through any of the major amateur astronomical magazines will demonstrate
there are filters available for all aspects of optical astronomy. This book provides a ready
resource on the use of the following filters among others for observational astronomy or for
imaging: Light pollution filters Planetary filters Solar filters Neutral density filters for
Moon observation Deep-sky filters for such objects as galaxies nebulae and more Deep-sky
objects can be imaged in much greater detail than was possible many years ago. Amateur
astronomers can take photographs that rival those of professional observatories! The ability to
do this has been brought about by the revolution in CCD cameras and improved filters. The book
pinpoints which astronomical objects are best observed with which filters. Post-processing
(using Photoshop) is also discussed since it is helpful in further improving filtered astro
images. The last part of the book is an observational guide to 100 deep sky objects that
benefit from the use of filters - all personally observed by the author - with notes on the
filters used (or potentially of use) in their observation and imaging. There are also notes on
their celestial coordinates magnitudes and other pertinent information.
