Hi, Anyone else been out observing lately? Last Thursday and Friday were good, if damp, nights. Friday was excellent although everything, including me, got a covering of ice. The locks on the car even froze. This is a 30 min (10x3min) exposure of Orion.
There was some thin mist floating around adding to the effect of the star colours. It also caused a bit of a problem with field flattening and colour balancing especially around Rigel. The "Witches Head" nebula to the west of Rigel can also just be seen. Not too bad for a normal 50mm lens.