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Making a Refractor Telescope: How to Design, Grind, Polish, Test, Correct and Mount a Doublet Lens
Norman Remer's design is a classic example of a simple refractor telescope. His design features:
Since Remer didn't provide a ready-made plan for a 12-inch, you're going to have to step up and use his to create one. This is the most authentic, rewarding path forward. making a refractor telescope norman remer pdf 12 new
White Light ---> [ Crown ] [ Flint ] ===> Single Crisp Focus (Doublet Objective Lens)
The book itself has inspired several detailed projects within the amateur community. One builder, who created a 6-inch f/15 refractor, recalled that Making a Refractor Telescope was his primary guide. He noted that the book strongly recommended first grinding a simple 4-inch mirror as a "warm-up" to learn the basic techniques of glass working before touching the expensive lens blanks. This is a piece of wisdom you should absolutely heed. Making a Refractor Telescope: How to Design, Grind,
is widely considered the ultimate bible for Amateur Telescope Making (ATM) enthusiasts who want to cross the boundary from building reflectors to grinding their own doublet lenses. Originally published by Willmann-Bell, Inc. , this 391-to-408-page masterpiece acts as a masterclass coach. It safely guides builders through the highly sensitive process of shaping glass surfaces to sub-wavelength precision. The book famously includes built-in design programs, and its Chapter 12 stands out for providing 7 exact, pre-calculated lens prescriptions. This allows builders to dive straight into fabrication without needing a formal degree in optical engineering. Why the Norman Remer Guide is Essential
Norman Remer’s book, Making a Refractor Telescope , published by Willmann-Bell, is widely considered the definitive manual for the "ATM" (Amateur Telescope Maker) community. Unlike generic guides, Remer focuses on the specific mechanical and optical challenges of refractors, such as: White Light ---> [ Crown ] [ Flint
A series of internal rings with sharp edges must be placed inside the tube. These block stray reflections and ensure the background sky looks jet-black.
