In the 1960's, American amateur astronomer, John Dobson, designed a
revolutionary kind of astronomical telescope featuring a lightweight
large-aperture reflecting system on a simple mounting, using the
then-revolutionary material called teflon. The design combines
simplicity and portability with large-aperture prowess. Thirty years
later Dobsonians remain supreme for visually observing faint deep-sky
objects and are one of the best-selling large telescopes in the USA and
Europe. This popularity is reflected in the recent increase of companies
now heavily marketing Dobsonians, in particular, Meade (the
"Lightbridge" range), Orion USA (XT Intelliscope series), and Skywatcher
(Skyliner and Flextube models). This book is the ultimate guide to
buying and using commercial Dobsonians, both 'Econo' and 'Primo' models,
with in-depth accounts for the various models (plus accessories) on the
market and descriptions of the many innovations that amateurs have made
to optimize their telescopes' performance.