This is a very wide field monochrome image of the region around the Cone Nebula and the Christmas Tree Cluster. They are sitting in the middle of a much larger emission nebula with lots of structures.
Composed of more than 6 hours of Ha data taken from my backyard in the light-polluted Frankfurt area – Bortle class 7 (red zone). This is the first serious attempt with my new Samyang 135mm f/2.0 lens, stopped down to f/2.8 to improve the star shapes in the corners. Compared to my attempts with other 135 mm lenses the Samyang is almost perfect.
|Exposure:||H, 46 x 300sec + 14 x 600sec||Date:||2016-12-23…25|
|Setup:||Samyang 135mm f/2.0 with ATIK 460 EXm||Site:||Langen, Hessen, Germany|
Tags: IC2169, NGC2251, NGC2264