Classic Telescopes by Neil English
Author:Neil English
Language: eng
Format: epub
Publisher: Springer New York, New York, NY
Clearly, these were not the bogus ‘scopes so derided by the astronomical cognoscenti! They performed well beyond my expectations! So why aren’t more of us wooed by the charms of the humble 2-in. glass? For many, that enchanted state was shattered utterly and forever sometime beginning in the mid-1980s, when the shifting sands of corporate beliefs led to the slow relegation of the 60 mm refractor to the trash heap of amateur astronomy.
Formed in 1954, Tasco (or more accurately, Tanross Supply Co.) commissioned its telescopes from various suppliers in Japan. The best glass, so this author has been reliably informed, came from Astro Optical Industries Co., Ltd. (Royal brand), but later Tasco contracted the work to other Japanese companies (Towa, especially) just like a proliferation of other instruments marketed by Swift, Unitron, Jaegers, Sears, Jason, Pentax and Mayflower, to name but a few. In Britain, many fine Japanese objective lenses found their way into telescopes marketed by Hilkin and GreenKat (Fig. 6.22).
Fig. 6.22The fine 60 mm f/13.5 Hilkin achromat looks very similar to those sold under the name of Swift (Image by the author)
Download
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.
Aeronautics & Astronautics | Astronomy |
Astrophysics & Space Science | Comets, Meteors & Asteroids |
Cosmology | Mars |
Solar System | Star-Gazing |
Telescopes | UFOs |
Tools of Titans by Timothy Ferriss(7808)
Turbulence by E. J. Noyes(7698)
Astrophysics for People in a Hurry by Neil DeGrasse Tyson(5000)
Secrets of Antigravity Propulsion: Tesla, UFOs, and Classified Aerospace Technology by Ph.D. Paul A. Laviolette(4985)
Design of Trajectory Optimization Approach for Space Maneuver Vehicle Skip Entry Problems by Runqi Chai & Al Savvaris & Antonios Tsourdos & Senchun Chai(4837)
Room 212 by Kate Stewart(4732)
Pale Blue Dot by Carl Sagan(4613)
The David Icke Guide to the Global Conspiracy (and how to end it) by David Icke(4376)
A Journey Through Divination and Astronomy by Publishing Pottermore(4248)
Apollo 8 by Jeffrey Kluger(3512)
Goodbye Paradise(3443)
Losing the Nobel Prize by Brian Keating(3424)
COSMOS by Carl Sagan(3346)
The Five People You Meet in Heaven by Mitch Albom(3334)
Brief Answers to the Big Questions by Stephen Hawking(3239)
How to Read Water: Clues and Patterns from Puddles to the Sea (Natural Navigation) by Tristan Gooley(3237)
How to Read Nature by Tristan Gooley(3075)
The Order of Time by Carlo Rovelli(3073)
A Brief History of Time by Stephen Hawking(2819)
