a LUM M1 picture taken 4. Jan-2016. Exposure time: 92*30sec.
LX200ACF 16" scope and Atik 460ex mono camera was used, together with a Baader LUM filter,
The picture was taken in windy conditions and the temperature was below zero degrees centigrade.
Location was, Copenhagen, Denmark.
Another processing version,
Off topic, here is the M1 shown with color data (taken with another scope & camera in a parallel session 4. Jan-2016),
Kind regards Niels