: The book was originally published by the famous astronomical press Willmann-Bell, Inc. . Following the retirement of its founders, the inventory and rights were acquired by the AAS (American Astronomical Society) .
: A massive undertaking intended for advanced builders requiring permanent observatory mounting.
For years, the prevailing wisdom was that . This was largely due to a lack of accessible literature. making a refractor telescope norman remer pdf 12 new
Traditionally, amateur astronomy has been dominated by the Newtonian reflector because mirrors are easier to produce than lenses. Remer’s essay and book challenge this by showing that the required for a refractor are actually simpler to finish than the parabolic curves needed for high-quality mirrors. While a refractor requires finishing more surfaces (four for a doublet), the tolerances for surface deformation are often more relaxed than for mirrors. The Core of Remer’s Approach
, which can be easier to achieve than the parabolic curve required for mirrors. He further explores why mirror surfaces must be figured four times as accurately as a lens, providing deep technical "whys" behind the "hows". : The book was originally published by the
: The flint lens selectively cancels out the color dispersion of the crown lens without entirely neutralizing its magnifying power. 2. Grinding the Four Surfaces
Building an achromatic refractor is a significant workshop project. Success hinges on having the right tools for the job: : A massive undertaking intended for advanced builders
, it covers the entire process of designing, grinding, and mounting a doublet lens. Amazon.com Book Overview