Together with the SIGMA 15mm F1.4 DG DN Diagonal Fisheye Living by the Phases of the Moon and the Weather When pursuing astroph...

That the Universe was expanding is an undeniable fact!  As we view the universe in the past, we see ever more distant galaxies ...

Astrophotography with the Sigma fp L - Having worked for a year with the SIGMA fp (see article (1) and article (2) here). It wa...

Background: Our observable universe can be shown on a time / distance plot such as Fig. 1., where, our observable universe is a...

Astrophotography with the SIGMA fp (2) - 6 Months into my astrophotography journey, I thought it would be good to take stock of...

Astrophotography with the SIGMA fp - I have always been fascinated by the night sky. In particular, the huge variety of Nebula ...

In order to answer this question, I first need to define Beauty and the concept of Beauty in general. To do this, I will summar...