Version 2.0: enhanced audio quality and no coffee :-) Hey folks! This video it’s time for some science! - Are all light beams from the same star? - What is field curvature? - Why are stars at the image edges always blurred? - Why can’t I see the secondary mirror in my final image? - … Let’s find some answers to those more “in-depth” questions of telescope-science. #Astroaddict A link to Tims very helpful video about lens distortions and corrector lenses: Thanks Tim (Astroaddict) for your great work! Links: Geogebra: x :GeoGebra_Installation My sims of a reflection telescope: x x x x Clear skies everyone! Greetings Chris Hashtags: #field_curvature #coma_corrector #reflection_telescope