Astigmatism in Refractor Telescopes: Causes and Solutions

Astigmatism In Refractor

The image you’re seeing through your refractor is not the best. Could it be due to a minor aberration such as astigmatism? When we look through a telescope, we want the image to be clear and sharp. Astigmatism is a type of off-axis aberration that interferes with this. Astigmatism in refractor telescopes and its effect … Read more