Making A Refractor Telescope Norman Remer Pdf 12 New Upd

: Many editions include a CD-ROM with Excel-based refractor design programs to help users calculate their own optical prescriptions.

The Amateur’s Guide to Building Refractors: Insights from Norman Remer

To fix this, Remer explains how to use two different types of glass mated together:

A proper Remer-style cell uses a "push-pull" screw system, allowing you to tilt the lens assembly until it is perfectly squared to the focuser. Step 4: The Focuser and Back-End making a refractor telescope norman remer pdf 12 new

Once the glass is perfected, you mount the doublet into an adjustable lens cell that permits fine collimation. The optical tube assembly (OTA) is typically built from heavy-duty aluminum or reinforced fiberglass tubing. The interior must be lined with sharp-edged light baffles and coated in ultra-flat black paint to absorb stray light and maximize image contrast. Tracking Down the Book and Digital Materials

The most difficult part of a refractor is the . If the lenses are tilted even slightly, the image will suffer from coma or astigmatism.

The project begins with raw glass discs. Builders must inspect the blanks for internal stresses or bubbles using a simple polariscope. 2. Rough Grinding (Generating the Curve) : Many editions include a CD-ROM with Excel-based

: A resource for checking availability in digital or physical lending libraries. Cloudy Nights Forum

His book, Making a Refractor Telescope: How to Design, Grind, Polish, Test, Correct and Mount a Doublet Lens , is a 408-page hardbound manual that leaves no stone unturned. Key features include:

: It includes specialized Excel spreadsheet programs on a CD-ROM to help builders design lenses corrected for color, coma, and spherical aberration. The optical tube assembly (OTA) is typically built

Norman Remer adopts a coaching persona, taking builders through a methodical, multi-stage process.

Selecting abrasives from coarse silicon carbide to fine aluminum oxide.