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Binoculars, Backwards and Forwards

Even before shopping for your first telescope, investing in a good binocular is a great way to get started in astronomy. Like the Loch Ness Monster however, there are many facts and fallacies surrounding binoculars. And like the question "What is the best telescope?", the question "What is the best binocular?" is user, and application, dependent. Can you really buy a good binocular for $49.95? Our speaker will have us looking forwards, backwards, and inside out through these devices to answer this question. Starting with the basics such as, "Do you even need an eyepiece to see an image?" (Nope!) to understanding the field stop, exit pupil, eye relief, interpupiliary distance, Porro vs. roof prisms, and much more, we'll be ready to spend some time on collimation and construction details. Along the way we will demonstrate some practical techniques for using and testing the binoculars you own or are considering buying. Bring anything from your child's plastic toy binoculars to your Leica or Zeiss units, and we'll take them for a spin. As a side effect, this will also help you in choosing your next eyepiece!

Speaker: Rich Combs

Friday, 01/18/19


Website: Click to Visit



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Tri-Valley Stargazers

1893 N. Vasco Rd
Unitarian Universalist Church
Livermore, CA 94551