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Choosing and Using a Refracting Telescope (The Patrick Moore Practical Astronomy Series), by Neil English
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This is a comprehensive guide to buying, testing, and using a refracting telescope. It is written mainly for amateur astronomers who already own or are intending to purchase a refracting telescope, but will prove useful for non-astronomical observers.
- Sales Rank: #1316218 in Books
- Brand: Brand: Springer
- Published on: 2010-09-29
- Released on: 2010-09-29
- Original language: English
- Number of items: 1
- Dimensions: 9.25" h x .70" w x 6.10" l, .95 pounds
- Binding: Paperback
- 284 pages
- Used Book in Good Condition
Review
From the reviews:
“Dr. Neil English is no stranger to the astronomical community … . His knowledge of telescope optics is highly respected, and here he endeavours to lay down all his knowledge in a concise and thorough manner. He opens the book with a wonderful overview of the history of the telescope … . this book something you really want to own, as it’s a guide not only to what is achievable by anyone with modest equipment, but also what to aspire to. Thoroughly recommended.” (Nick Howes, Astronomy Now Online, May, 2011)
“Neil English opens with a brief history of refractor design, including the contributions of Lippershey, Galileo and Huygens, amongst others. … the text is clearly written and there’s plenty of useful data in the appendix. … it’s a valuable resource for anyone thinking about buying a refractor or who wants to learn more about the history and development of this iconic scientific instrument.” (Mark Parrish, BBC Sky at Night Magazine, June, 2011)
“Having owned around a dozen refractors over the years–ranging from a ‘lowly’ 40mm refractor, through several antique examples to a go-to refractor–I was keen to read a book that promised to reinforce my love for ‘the prince of telescopes’. … An excellent, up-to-date book containing much more than I have outlined in this review. English communicates his passion for refractors, and the book comes to life with user accounts of refractors old and new.” (Peter Grego, Popular Astronomy, July-August, 2011)
“Value to have accessible a comprehensive guide to the availability and use of refractors, which have a special attraction and romance –– especially for those who have used and appreciated the best of them. … The short but useful appendices include glossaries of terms and formulae, and data on a selection of double stars which can be used for testing refractors of various apertures. … Even for those with only the slightest interest, it would certainly inspire them.” (R. A. Marriott, The Observatory, Vol. 131 (1224), October, 2011)
From the Back Cover
The refracting telescope has a long and illustrious past. Here’s what the author says about early telescopes and today’s refractors: “Four centuries ago, a hitherto obscure Italian scientist turned a home-made spyglass towards the heavens. The lenses he used were awful by modern standards, inaccurately figured and filled with the scars of their perilous journey from the furnace to the finishing workshop. Yet, despite these imperfections, they allowed him to see what no one had ever seen before – a universe far more complex and dynamic than anyone had dared imagine. But they also proved endlessly useful in the humdrum of human affairs. For the first time ever, you could spy on your neighbor from a distance, or monitor the approach of a war-mongering army, thus deciding the fate of nations. “The refractor is without doubt the prince of telescopes. Compared with all other telescopic designs, the unobstructed view of the refractor enables it to capture the sharpest, highest contrast images and the widest usable field. No other telescope design can beat it on equal terms. From a practical point of view, refractors are the most comfortable and least troublesome telescope to observe with. They require little maintenance and cool down rapidly to allow you to observe in minutes rather than hours. Because a refractor has more back focus than almost any other form of telescope, it can accept the widest range of accessories, including filters, cameras, and binoviewers.” Explore in this book what makes refractors such a good choice for amateur astronomers and how to choose the right one for you. Also get some great tips on how to use your new refractor. Get started now, seeing for yourself the dazzling and complex universe first opened to human sight more just 400 years ago.
About the Author
Dr. Neil English has a PhD in Biochemistry, and also a BSc in Physics & Astronomy. He is a Fellow of the Royal Astronomical Society, and a regular contributor to Astronomy Now (the UK’s major astronomy magazine), as well as to Ireland's Astronomy & Space. He is the author of Guide to Mars (Pole Star Publications, 2003). Neil’s astronomical images have been published in various magazines and journals, including a full page in the June 2006 issue of Astronomy. He has used and tested literally hundreds of refracting telescopes over a period of thirty years and has written about all aspects of this kind of instrument in the magazines. He owns and regularly uses a variety of refractors - both apochromat and achromat - which he uses from his home in rural Scotland.
Most helpful customer reviews
1 of 1 people found the following review helpful.
A celebration of the refractor telescope.
By R. Stephen Franks
Neil English has a passion for refractors and he isn't afraid to sing its praises!
Nowadays, it would seem that refractors have taken a back seat to more popular, compact designs like the Schmidt-Cass, Maksutov, or amateur astronomy's workhorse, the Newtonian. But Mr. English pleads the case for the iconic refractor and the quality of its still superior images. He covers every design type with in-depth chapters ranging from; the history of the refractor, the traditional classical f/15 refractor, instruments of faster ratios, special dispersion glass, apochromatics, and the future of the refracting telescope. English also devotes chapters to the refractor's peculiarity of design and presents a strong case as to why the venerable, classical f/15 refractor still reigns supreme. The closing chapter covers the classical refractor's more recent popularity and quiet comeback.
Neil English loves refractors and his enthusiasm sometimes leaps off the page. But, his work is methodical and he backs his observations and examples with hard evidence, calling on optical experts and professional astronomers to rally for his cause.
If you are a hardcore refractor man, Neil English is preaching to the choir. If you are considering purchasing a refractor, this book is a revelation. If you like telescopes, this book is simply a joy to read.
I have been a dedicated refractor owner, and user, for more than 34 years. Looking through a long focus, "classical" refractor for the first time is an experience that is truly sublime. And, it stays with some amateur astronomers for a lifetime.
5 of 5 people found the following review helpful.
Buy this book!
By Michael R. Nofi
If you are a refractor affectionado you will love this book. I have used telescopes for over 45 years and I thought I knew everything about refractors and I was wrong (e.g. defocus tolerance and the affects on seeing). The book has a breezy writing style that is upbeat and fun to read. Mr. Neil English is passionate about refractors and it is infectious! My only complaint is that the book places too much emphasis on reviewing telescopes (which will become outdate over time) and I would like to seen more emphasis on testing and optical performance theory. To the author's credit he did an excellent job explaining complex optical theory in a very digestable manner. A few typos were noted and some of the graphs were hard to decipher (due to lack of a color legend). Most of the books emphasis is on visual observing and not digital imaging. Some readeres may not agree with the author that the old telescopes were in many cases better than the new genera of APOs. I do agree with the author's statement that a properly made achromat with a slow f/ratio is really hard to beat for depth of focus, sharpness and contrast. I have seen it with my own eyes! When the book came to an end I found myself wanting more.
0 of 0 people found the following review helpful.
Read this before buying your scope.
By T. McRae
Books in this series are about 10%-20% too expensive, but the size of this publisher's market is small, and given the quality of the information, the images and the author's style, I would definitely purchase this book again. I was planning to read it through systematically, but my curiosity for what came next drove me rapidly forward, and now I must go back and move ahead with pen in hand, underlining what's important for me. The author details carefully the differences between models and types of optical tubes that virtual beginners like me might too easily gloss over or overlook entirely. Refractors are but one of the three basic types of telescope; newcomers should learn about all three types before making a serious purchasing decision. This text belongs in every amateur astronomer's library.
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