12 New ((better)): Making A Refractor Telescope Norman Remer Pdf

While the full PDF is not legally available for free download due to copyright, you can find the book and related resources through these official channels: 📖 Book Details & Purchase

This is an out-of-print, niche amateur document. It will be on Amazon or commercial ebook sites. Try these specialized archives:

Unlike a mirror which has one optical surface, a doublet lens has four surfaces (R1, R2, R3, and R4) that must all be ground to precise, calculated curves.

Example: Step excerpt (Variant 1 — Beginner 60/700 Achromat) making a refractor telescope norman remer pdf 12 new

: For practical advice from others who have used Remer's methods, the Cloudy Nights ATM Forum is a highly active resource for amateur telescope makers.

So, how do you actually do this? Here is a realistic, step-by-step plan:

: The book includes specialized software (originally on a CD-ROM) to help builders calculate the exact radii and thicknesses needed for their glass. While the full PDF is not legally available

You rub the two glass blanks against each other (or against a tool) with coarse grit to hollow out the desired radius of curvature.

A high-quality rack-and-pinion or Crayford focuser is mounted at the rear to hold eyepieces and cameras. Sourcing Materials and Digital Guides

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. Example: Step excerpt (Variant 1 — Beginner 60/700

Moving beyond traditional rouge to modern, faster-acting cerium oxide compounds for a superior, smoother finish.

: A high-index, high-dispersion glass placed behind the crown to correct the dispersion and bring two primary wavelengths (usually red and blue) to the exact same focal point.

Once the glass is fine-ground and free of scratches, it is polished using cerium oxide on a custom-poured polyurethane or resin pitch lap. "Figuring" is the ultra-delicate zone of construction where tiny, microscopic imperfections are systematically polished out to ensure light waves converge perfectly at the focal plane. 4. Optical Testing

Variant 5 — Advanced 100/800 Fast Refractor

Remer focuses on the , which uses two different types of glass (typically crown and flint) to cancel out chromatic aberration—the annoying "rainbow" fringes that occur when different wavelengths of light don't focus at the same point.