Writing

• Piercing light pollution - a comparison among LP filters Fabio Di Giorgio

  Six light pollution filters compared side by side from a city sky, with the same target shot through each and the results measured, not described.

• A simple guide to astrophotography for total beginners with only a camera and tripod Giancarlo Erra

  How to photograph the night sky with nothing but a camera and a tripod: what to shoot, what settings to use, and how to stack what you get.