Titlebook: Amateur Telescope Making; Stephen F. Tonkin Book 1999 Springer-Verlag London 1999 CCD.instruments.photography.planet.telescope

微塵

無王時(shí)期,

BRIDE

A Ball-Scope: The Best Portable Telescope!s the best-known example of this type of mounting is the Edmunds Astroscan. Steven Lee has successfully extended this principle to a 12.5 in (315 mm) telescope, showing, on the way, how a typical ATM overcomes the problems that beset him.

Spinous-Process

Bureaucracy

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https://doi.org/10.1007/978-3-642-94502-1This telescope is typical of many shoestring projects in that the inspiration comes from the serendipitous discovery of an important component; in this instance it is the objective lens. This initial discovery inspires creativity in the adaptation of everyday materials, and so the telescope develops.

Cardioplegia

An 80 mm RFT RefractorThis telescope is typical of many shoestring projects in that the inspiration comes from the serendipitous discovery of an important component; in this instance it is the objective lens. This initial discovery inspires creativity in the adaptation of everyday materials, and so the telescope develops.

規(guī)章

1431-9756 The telescopes and mounts range from "shoestring" (very cheap) instruments to specialist devices that are unavailable commercially.978-1-85233-000-2978-1-4471-0567-1Series ISSN 1431-9756 Series E-ISSN 2197-6562

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幸福愉悅感

“Skinflint”: A 15.5-inch f/4.8 Reflectorscopes or optics. Gil Stacy has found creative uses for commonly available materials and artefacts, much of which many people would class as scrap, to build his “Operation Skinflint”, a 15.5 in f/4.8 Dobsonian reflector for a cost of less than $400.