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  • Digital SLR Astrophotography

    Digital SLR Astrophotography

    This tutorial covers the methods I use for astrophotography with my Canon XSi digital SLR and Celestron CGEM. It is similar to the tutorial I wrote in December of 2007 for digital SLR astrophotography with my Canon 300D. With the exception of the Orion ED80 refractor, I am using all new equipment. I am also using different software for processing the RAW images into a detailed composite photo. Note that Read More
  • Astrophotography on a Budget by Martin Cohen

    Astrophotography on a Budget by Martin Cohen

    Many years ago, before digital photography revolutionized the medium, taking a beautiful shot of the Andromeda Galaxy (M31), or even a detailed image of the moon, showing its many craters, rilles and mountains would only be possible if you had a large wallet and access to highly specialized equipment and techniques. For the average amateur astronomer it was entirely out of reach. With high-end telescopes now being mass produced, new Read More
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Roll-Off Observatory Plans

SkyShed plans provide you with all the information needed to construct an easy to build, attractive and fully functional roll-off observatory. 95% of materials are available from your local building materials retailer.
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Solar Eclipse August 21, 2017


The sun is the closest star to our beautiful planet, and its warmth sustains life on Earth. Without its enormous and constant emission of energy, life would not be possible. At a distance of 93 million miles, its light and heat takes about 8 minutes to reach us, traveling at the enormous speed of 300.000 km per second.

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Stellarvue Raptors and Lizards

I like unexpected adventures. And from time to time I get a little more than I bargained for.

Over the years, I have owned a crazy number of small refractors. They make for fabulous grab-and-go instruments: if there is a beautiful moon outside or I have a friend over who has never seen Saturn through a telescope before,

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Astrophotography with Newtonians- A Review of the Celestron Omni XLT 150

For many years, I have used small refractors to photograph the night sky. Refractors are great if they are well corrected and up to 80mm diameter they are quite affordable. With the right reducer/flattener and a decent camera it’s possible to create wonderful images: if tracking is done properly, stars will be nice and small pinpoints.

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