FoucaultFringes

Telescope-Related Publications and Presentations

by Michael E. Lockwood, Lockwood Custom Optics

I have dedicated a lot of time and effort to educating clients, telescope owners, and interested people on topics that are related to telescopes and telescope performance.  I want people to understand why their telescopes perform poorly or perform well, and I would like them to have good information that they can access to help them solve problems.  Many of my online articles have become talks, and some have been published in magazines.  Some articles have also been written about telescopes that I have built.

Here's a list of articles that have been published in magazines, articles I have been mentioned in, and presentations I have given on topics related to optics, telescope making, and mirror making.  The author/presenter is me, unless otherwise noted.

Please let me know if you have interest in having me speak at your event.



"Is it Hot in Here or is it Just My Optics?", presented at the Winter Star Party, Wed., Feb. 22, 2017.

"A Modern Guide to Mirror Support", Amateur Astronomy Magazine, Volume 92, Fall 2016, pages 47-58.

"A Modern Guide to Mirror Support", presented at the Okie-Tex Star Party, Wed., Sept. 23, 2016.  A presentation about my recommended modern mirror cell construction techniques and tips, here is a link to the online article on my web site.

"Is it Hot in Here or is it Just My Optics?", presented at the Okie-Tex Star Party, Wed., Sept. 23, 2016.  A presentation about the issues that temperature changes cause in telescopes, their structures, and their optics.

"A Modern Guide to Mirror Support", presented at the Winter Star Party, Wed., Feb. 10, 2016.

"A Modern Guide to Mirror Support", presented at the Chiefland Fall Star Party, Thurs., Nov. 12, 2015.

"A Modern Guide to Mirror Support", an informal talk, presented at the Okie-Tex Star Party, Wed., Sept. 16, 2015.

"Four Lessons in Mirror Testing", presented at the Okie-Tex Star Party, Wed., Sept. 16, 2015.    A presentation about different mirror testing techniques, how well they should/can agree, and the common pitfalls of some of them.  Here is a link to the online article, on my web site.

"Four Lessons in Optics", Amateur Astronomy Magazine, Volume 86, Spring 2015, pages 57-67.

"Four Lessons in Mirror Testing", presented at the Winter Star Party, March 19, 2015.

"Winter Star Party 2014", Amateur Astronomy Magazine, Volume 85, Winter 2014, pages 46-52.  Article about my trip to the Winter Star Party 2014 and other places visited.  Here is a link to the online article, on my web site.

"Why Aren't My Stars Round?", presented at a meeting of the Texas Astronomical Society of Dallas, June 27, 2014.

"Why Aren't My Stars Round?", presented at the Winter Star Party, March 27, 2014.

"Adventures in Big Mirror Making", presented at the Chiefland Fall Star Party, Thurs., Oct. 31, 2013.
    
A presentation detailing the refiguring of a 42" f/3.86 mirror and the grinding, polishing and figuring of a 50" f/4 mirror made from a cast cellular blank.  Images and test images from various stages of work are shown, and detail the good, bad, and ugly involved in working on large mirrors.

"Why Aren't My Stars Round?", Amateur Astronomy Magazine, Volume 80, Fall 2013, pages 56-62.    Article about the various cause of optical problems found in Newtonian telescopes, and how to recognize, diagnose, and fix them.  Also a description of how to collimate using a star and critical defocusing.  Here is a link to the online article, on my web site.

"Adventures in Big Mirror Making", presented at the Okie-Tex Star Party, Wed., Oct 2, 2013.

"Why Aren't My Stars Round?", presented at the Okie-Tex Star PartyWed., Oct 2, 2013.
 
"The Winter Star Party (2013)", Amateur Astronomy Magazine, Volume 79, Summer 2013, pages 62-65.
   
Article about the Winter Star Party and other places I visited in Florida.  Here is a link to the online article, on my web site.

"Adventures in Large Mirror Making", presented at the Winter Star Party, Tues., Feb. 5, 2013.

"Optical Testing", presented at the Hidden Hollow Star Party, Fri., Aug. 17, 2012.
    Presentation about general optical testing topics, different test methods, advantages and drawbacks, null-testing arrangements, etc.  Many test images are shown.

"Amateur Telescope Making - a Survey", presented at the Hidden Hollow Star Party, Sat., Aug. 18, 2012.
    
A presentation (updated as of August 2012) covering the history of increasingly large telescopes, the history of telescope making, and an overview of how amateurs build telescopes, the designs and materials they choose, and other random thoughts that I consider relevant to a discussion of ATMing.

"Optical Testing", presented at the Winter Star Party, Tues., Feb. 21, 2012.

"Measuring asteroids with homemade monsters", Sky and Telescope Magazine, December, 2011.
    I wrote this article to describe the hard work done by Bob Holmes, founder of the Astronomical Research Institute.  Bob built his own telescopes, and has devoted many years to measuring asteroid positions, and his work is now funded by NASA.

"Optical Testing", presented at the Okie-Tex Star Party, Thu., Sept. 29, 2011.
    Presentation about general optical testing topics, different test methods, advantages and drawbacks, null-testing arrangements, etc.

"Building a better Newtonian", presented at the Okie-Tex Star Party, Thu., Sept. 29, 2011.
    Presentation about ways to improve Newtonian telescopes, such as fast cooling mirrors, how to cool mirrors, proper mirror edge support.  Beginning of the talk was a continuation of "Optical Testing" including the Lockwood Coating Polish test and test results for five example mirrors.

"Fast Optics - V2.0", presented at a meeting of the Indiana Astronomical Society at the Link Observatory on Sat. May 21, 2011.
    
Presentation about the advantages and disadvantages of fast Newtonian telescope optics, and some of the stories behind how I came to make such large, fast mirrors.  Slides added to discuss 50" f/2.2 mirror and other completed or upcoming large-mirror projects that I will be working on.

"The new Dobsonian revolution"by Michael Bakich, Astronomy Magazine, January, 2011.
    Michael Bakich discusses my fast optics, Starmaster Telescopes, and the Paracorr Type 2 by Televue, and how the combination has altered the telescope market.

"A New Optical Shop", presented at the Okie-Tex Star Party, Thu., Oct. 7, 2010.
    Presentation about my new optical shop, how it was constructed with optical fabrication in mind, and some of my latest projects.

"Various Topics", presented at the Okie-Tex Star Party, Thu., Oct. 7, 2010.
    Presentation about optician Dick Wessling, who passed away in the spring, my trip to Haleakala Observatories last year, an update on fast optics, and a Q&A session about various telescope and optical topics.


"Fast Optics", presented at the Indiana Family Star Party, Sat., Aug. 7, 2010.
    Somewhat abbreviated version of the talk below.

"Fast Optics", presented at the Okie-Tex Star Party, Wed., Sept. 16, 2009.
    Presentation about the advantages and disadvantages of fast Newtonian telescope optics, and some of the stories behind how I came to make such large, fast mirrors.


"Amateur Telescope Making - A Survey of the Craft", presented at the Okie-Tex Star Party, Wed., Sept. 16, 2009.
    A presentation that I do every so often covering the history of increasingly large telescopes, the history of telescope making, and an overview of how amateurs build telescopes, the designs and materials they choose, and other random thoughts that I consider relevant to a discussion of ATMing.

"Building Faster, High Quality Newtonian Telescopes", Amateur Astronomy Magazine, Volume 63, Fall 2009.
    I discuss the advantages and disadvantages of fast Newtonian telescopes in this medium-length article.

"Bigger, Faster, Better!" by Gary Seronik, Sky and Telescope Magazine, July 2009.
    Gary Seronik discusses fast Newtonian telescopes, and features my 20" F/3 Starmaster telescope in his monthly Telescope Workshop column.

"A Travelscope Challenge" by Gary Seronik, Sky and Telescope Magazine, March 2009.
    Gary Seronik describes my 8" F/5.4 travel telescope in his monthly Telescope Workshop column.

"Large Telescopes, Projects, Trends and Issues", presented at the Okie-Tex Star Party, Wed., Oct. 1, 2008.
    Presentation about large telescopes and some of the issues that their builders deal with, such as thermal performance, mirror support, and trends in construction. Up to date information was given about Bob Holmes' 24", 32", and future 50" research telescopes with updated statistics from him, as well as the 43.4" telescope under construction by Robert Houdart.

"Optical BS", presented at the Okie-Tex Star Party, Thurs., Oct. 2., 2008.
    After giving a bit of information about my background, in this talk I explored some of the misconceptions about optics and optical testing by posing ten questions, the answers to which are either "True" or "BS".  I asked the audience to vote on which answer is correct, and explained the correct answer. I then disussed the answers, and finished up by talking about mirror cooling, quality metrics for optical testing, and issues with some common optical tests.

"Okie-Tex 2007", Amateur Astronomy Magazine, Volume 59, Fall 2008.
    Describes my experience at my first Okie-Tex Star Party.

"Building and doing research with a 32” and a 24” telescope and Large telescopes", presented at the Winter Star Party, Wednesday, Feb. 6, 2008.
    Presentation about Bob Holmes' 24" and 32" research telescopes with updated statistics from him, as well as the 43.4" telescope under construction by Robert Houdart, which I am making the primary and secondary mirror for, and Bob Holmes' proposed 48" F/4 prime-focus telescope.

"Building MBM 30" (updated version), presented by Mike Lockwood, Mike Conron, and Bob Nonnemann the Okie-Tex Star Party, Friday, Oct. 5, 2007.
    Describes the making of the 30" mirror and the construction of the MBM 30" telescope.

"Construction, observations, and research using 24" and 32" telescopes"
, presented at the Okie-Tex Star Party, Wednesday, Oct. 3, 2007.
    This talk uses some presentation materials from Bob Holmes, who built the telescope, but also many photos and videos that I took while making the primary mirror.  I made the primary mirrors for Bob's two telescopes and assisted with their setup.

"Construction, observations, and research using 24" and 32" telescopes", presented at the Indiana Family Star Party, Saturday, Aug. 11, 2007.

"A Modern Long-Focus Newtonian", Sky and Telescope Magazine, March 2006.
    Describes my 10" F/8.8 scope and its construction.

"A Portable Large-Aperture Cassegrain", Sky and Telescope Magazine, October 2006.
     Describes my 12.5" F/12.5 classical Cassegrain and its construction.

"Building an Open-Tubed 12.5" F/12.5 Classical Cassegrain", July 2005, Cloudy Nights article.
    Details the design and construction of my Classical Cassegrain, originally entered in the Cloudy Nights telescope making contest.

"Amateur Telescope Making - A Survey of the Craft", presented at the Rose-Hulman Institute of Technology, Nov. 28th, 2005.
    Also presented to the Astronomical Society at the University of Illinois (UIAS), Feb. 22nd, 2006.
    Previous versions of this talk were presented to UIAS in several previous years, and I update it every year.


"Building MBM 30", presented by Mike Lockwood and Mike Conron at the second annual Prairie Skies Star Party, Saturday, Oct. 1st, 2005.  Here is a link to my article about PS2005.
    An updated version (as of October 2007) was presented at the Okie-Tex Star Party 2007.

"Live Foucault Testing" - I took one of my testers to Prairie Skies 2006 and 2007 to test mirrors on the spot.  The results ranged from great to very bad.

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