... mit gleicher Ausrüstung:
von R. Crisp. Info:
"Here's another comparison image. This compares Thor's Helmet Halpha
taken with an Astro-Physics AP155EDF and ST10XME camera (binned 1x1)
with one taken with a C14 and IMG1024S camera. In this comparision,
the plate scales were close: AP155/ST10XME: 1.29 arc-sec/pixel,
C14/IMG1024S: 1.12 arc-sec/pixel.
In this comparison, all sub exposures were 20 minutes. There were
four such subs with the AP/ST10, while there were three subs with the
Even though the AP155 has a focal ratio of f/7 and the C14 is at
f/12.46, the C14 goes deeper with the same sub exposures. "