Making A Refractor Telescope Norman Remer Pdf 12 New !!hot!! -
: One of the most shocking revelations in Remer's book is the physics of optical error. A mirror surface must be figured four times as accurately as a lens surface to achieve the exact same wave-front accuracy. This is because light reflects off a mirror (doubling any surface error) but passes through a lens, where the refraction dampens the effect of minor physical deviations. Understanding the Doublet Lens Blueprint
In the world of amateur astronomy (often called "ATM," short for Amateur Telescope Making), building a telescope is a rite of passage. For decades, the focus has been on the Newtonian reflector—a design using mirrors that is generally considered more forgiving for a first-time builder. But for those who prize sharp, high-contrast planetary images, the refractor is the holy grail. Its unobstructed light path offers a clarity that many feel is unmatched.
If you’ve seen a file named something like Remer_Refractor_12_new.pdf , it’s likely:
" is widely considered the definitive manual for amateur telescope makers (ATMs) looking to move beyond simple reflectors. Published by , it demystifies the process of creating a doublet lens, a task long perceived by many hobbyists as nearly impossible. Breaking the Myth of Difficulty
A tiny air gap (often maintained by three small tabs of plastic or foil spaced 120 degrees apart) is usually required between the crown and flint lenses. making a refractor telescope norman remer pdf 12 new
New copies typically include a CD-ROM with Excel spreadsheets for refractor design programs. Reader Feedback & Performance
To fix this, Norman Remer's book guides the builder through creating an . This design pairs two different types of glass:
: A high-index, high-dispersion element that forms the negative, rear-facing lens.
: A rear, concavo-convex or double-concave lens made of high-dispersion glass (typically Flint SF1) that corrects the color dispersion introduced by the crown lens. : One of the most shocking revelations in
A single lens acts like a prism, bending different wavelengths (colours) of light at slightly different angles. This causes —a distracting purple or yellow halo around bright objects.
by Norman Remer is widely considered the definitive modern guide for amateur telescope makers (ATMs) seeking to build high-performance doublet lenses. Originally published by Willmann-Bell, Inc. , this 408-page textbook demystifies a branch of optical fabrication that was long thought to be too complex for the backyard workshop. While the amateur astronomy community has historically focused on grinding parabolic mirrors for Newtonian reflectors, Remer outlines how common tools and patient, structured practices can yield highly superior, unobstructed refractor optics.
Found it: Norman Remer – Making a Refractor Telescope (PDF, 12th New Edition)
: The book is listed on Open Library , where you may be able to borrow a digital copy if available. Understanding the Doublet Lens Blueprint In the world
User flows
: Remer guides readers through testing their optics and constructing a cell to mount the doublet securely in an optical tube. First Light Optics Relevance to Amateur Makers Community discussions on platforms like Cloudy Nights
For over a century, the amateur telescope-making (ATM) community has thrived. Since the publication of Albert Ingall’s first volume of Amateur Telescope Making , amateurs have crafted thousands of telescopes using surprisingly simple tools. However, the vast majority of these instruments are reflectors—telescopes that use a parabolic mirror to gather and focus light.
Can be made from aluminum, fiberglass, or heavy-duty phenolic tubing.
For builders who want to skip complex optical math, . These blueprints outline specific configurations for building doublet lenses using standard, reliable glass blanks—typically combining a crown glass element (like Schott N-BK7 ) and a flint glass element (like SF1 or F2 ).
: Unlike complex parabolic mirrors, all surfaces in a doublet lens are spherical, making them easier to manage with the right patience.