Night Sky Observer's Guide Volume 4: The Glories of the Milky Way to –54° Annals of the Deep Sky Ten photographic lens design problems

Ten photographic lens design problems are presented from the simple Wollaston landscape lens to the more complex achromatic telephoto

author of Advanced Observing: Visual Mysteries of the Universe

This is the next step up from our Pocket Sky Atlas – and a must for every serious telescope user

the peculiarities of nearly 20 Arp galaxies can be detected

citing the unparalleled clarity of his instructions and the rigor of his methods

Night Sky Observer's Guide Volume 4: The Glories of the Milky Way to –54° Annals of the Deep Sky Ten photographic lens design problemsBy George Robert Kepple. The original purpose of The Night Sky Observers Guide was to close the gap between observing literature and modern optics. It provided the owner of a medium or large aperture telescope with some idea of what to look for in such instruments both what objects can be seen, and what details may be seen within these objects. Now, with four volumes, it has become an indispensable resource for observing. The Night Sky Observers Guide