Another test shot with my GSO 200mm f/4 Newtonian at f/6 using a Siebert Optics 1.5x Barlow. The stars seem a bit loarge and its probably due to a lack of dilegence in my focusing. Conditions were actually quite favorable for this time of year.
Exposure: R:G:B : 15:10:13 x 120 sec
Telescope: GSO 200mm f/4 + Siebert Optics 1.5x Barlow
Mount: Atlas EQ-G
Camera: SXV-H9 + Astronomik RGB filters