Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
Click on a see also (sa) or tracing (xx) to view detailed entries about a related subject.
The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.

All about telecompressor lenses. How they work and how to incorporate one into your telescope to get a faster effective focal ratio.
ASTRONOMY Feb 1981 (v.9#2) pg. 47

How to "star test" your telescope to determine if it has good quality optics.
ASTRONOMY Apr 1983 (v.11#4) pg. 51

How to clean your optics. Remove dust and dirt from your telescope mirrors, lenses, and eyepieces.
ASTRONOMY Mar 1992 (v.20#3) pg. 81
Added Info ASTRONOMY Jun 1992 (v.20#6) pg. 6

Test your telescope's optics. How to use a star at night (or an easy-to-build artificial star) to evaluate the performance of your telescope.
ASTRONOMY Jul 1994 (v.22#7) pg. 56

Tips on designing and fabricating an apochromatic triplet objective lens for a refracting telescope.
SKY & TELESCOPE Oct 1981 (v.62#4) pg. 376
Correction SKY & TELESCOPE Apr 1982 (v.63#4) pg. 411

A simple coma corrector for Newtonians. How to make a coma-correcting meniscus lens as an add-on accessory for existing short-focus Newtonians of all sizes.
SKY & TELESCOPE Jul 1983 (v.66#1) pg. 67

Astronomical computing. Designing an aplanatic doublet lens with the help of a simple computer program.
SKY & TELESCOPE Nov 1984 (v.68#5) pg. 450

A quest for the perfect refractor. Technical description of the Gregory 8" f/15 color-free doublet objective lens. Includes a description of the grinding and polishing process and the construction of the aluminum cell which holds the lens.
SKY & TELESCOPE Jun 1987 (v.73#6) pg. 662
Added Info SKY & TELESCOPE Sep 1987 (v.74#3) pg. 317

Information on making a general-purpose lens grinding and polishing machine.
SKY & TELESCOPE Jul 1995 (v.90#1) pg. 81

How to make a lens. How to build a lens grinding machine and necessary test equipment in order to grind, polish, and test your own lenses.
TELESCOPE MAKING #3 Spring 1979 pg. 34

A portable lens and mirror grinding/polishing machine. Handles blanks up to 6" diameter. Spindle speeds are variable from 2- to 60-rpm. Powered by a 1/10 hp geared motor.
TELESCOPE MAKING #7 Spring 1980 pg. 20

The H'tanU' curve: a most favorable ray intercept plot for a lens design.
TELESCOPE MAKING #21 Winter 1983 pg. 28
Added Info TELESCOPE MAKING #22 Spring 1984 pg. 11

Tips and formulae for grinding a modified Cooke triplet lens.
TELESCOPE MAKING #24 Fall 1984 pg. 45

An interference test for Schmidt camera corrector plates.
TELESCOPE MAKING #27 Spring 1986 pg. 28

Cementing achromatic lenses. How to separate old lenses and re-cement them.
TELESCOPE MAKING #28 Fall 1986 pg. 16

Design and construction of a super planetary telescope objective. Specifications for a 5.8" f/12.5 lens.
TELESCOPE MAKING #28 Fall 1986 pg. 20

Better method for separating cemented lens elements such as those found in telescope eyepieces or small objectives.
TELESCOPE MAKING #46 Winter 1991-92 pg. 6

Copyright © by Norman Lathrop Enterprises. All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means (electronic, mechanical, print photocopying, recording or otherwise) without the prior expressed permission of Norman Lathrop Enterprises, except as permitted by law.