: Using optical tests to identify and fix errors in the lens figure.
Making a Refractor Telescope: The Definitive Guide for Amateurs making a refractor telescope norman remer pdf 12 new
Remer’s work serves as a "coach" for amateur telescope makers (ATMs), guiding them through the transition from making mirrors (for reflectors) to crafting doublet lenses. He argues that making a lens utilizes the same fundamental tools and practices as mirror making—namely grinding and polishing spherical surfaces. : Using optical tests to identify and fix
: Used copies are often listed on AbeBooks or Amazon . pitch for polishing
: Builders typically work with glass types like BK7 and KZFS1. The process involves using specific abrasives, pitch for polishing, and testing methods to ensure the curves are correct.