The discussion centers on the performance expectations of a 6-inch mirror reflector telescope for astrophotography compared to a 3-inch lens refractor. While the 6-inch telescope collects four times more light, the resolution does not increase proportionally; it only improves by a factor of two under ideal conditions. Atmospheric conditions significantly impact the achievable resolution, preventing users from reaching the theoretical improvements in image quality. Therefore, while the light-gathering capability is enhanced, practical results may vary due to environmental factors.
PREREQUISITESAstronomy enthusiasts, astrophotographers, and anyone considering upgrading their telescope for improved light-gathering and resolution capabilities.
So if it would be 4x the light gathering then the resolution would be 4x right? Assuming conditions/distances of planets are the same.mfb said:Seeing will become (more) relevant, depending on atmospheric conditions. You collect four times the light, but resolution does not have to go up by a factor 2.
No, a factor 2 in resolution (in both axes) at the same light per pixel already needs a factor 4 more light. Without the atmosphere, you could get the same image quality with a 2 times better resolution (4 times the number of pixels). With the atmosphere, you probably won't reach that theoretical improvement.kolleamm said:So if it would be 4x the light gathering then the resolution would be 4x right?