[SB (Chris)]

Hi All,
Completed NGC 2539 yesterday with a clear night on Friday.
I added Ha data to duoband data. I'm pleased the way the star colours came out. Despite the number of stars the Nebula still came through.

I wonder if the ZWO Duoband having a wider bandwidth allows a greater colour range than more restrictive bandwidth making it more suitable for a colour camera? However it is interesting to see how much more efficient the 3.5nm Ha filter is than the duoband (filling the sensor wells with only the desired bandwidth). Would I get the same effect with just 3.5nm Ha and 3.5nm Oiii ?

14 x 600 seconds ZWO Duoband filter
8 x 600 Seconds Ha Antlia 3.5nm filter
Esprit 100
ASI 183 MC Pro
HEQ6-R
ZWO OAG AS1120mm

Stacked and processed in Affinity on Mac.

Chris.