The Con Concave Lens in the Galilean Telescope, Is That a Good Idea?

The keplerian telescope has a much wider field of view and really note physics behind it. The difference here is that if the light asses the focal point, than the image invert, invertenc so that was one disadvantage with the keplerian telescopes. In the capleran case, you're converging all of the light rays that come on to that point. So again, caplerian has advantages here. Red.