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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