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3) How to Buy a Telescope : Focal Ratio & Focal Length

May 17th, 2012 No comments

When buying a telescope, use the focal length and focal ratio to determine the magnification of a telescope. Choose a focal ratio for a telescopes based on the tips in this free video on home astronomy from www.BuyTelescopes.com

Vlog Easter Weekend and a Big Thank You 7th of April 2012

April 9th, 2012 5 comments

Saturday night Campfire vlog

How to Use Setting Circles on a Small Telescope

April 1st, 2012 11 comments

The awkward truth about the effectiveness of setting circles fitted to small telescopes. Erratum: The scale of the AA road map referred to is in fact 1:500000 and not 1:500. So what’s another 499500 between friends? RJD Presented by Robert J Dalby Produced by ARB Media Productions for The Astronomy and Nature Centre