I don't do narrowband that often but the CDK17 with the reducer is really a hot little narrowband machine. The reducer really transforms it in that way.
So here is IC4628 commonly referred to as the Prawn.
HaS11O111 all 15 minute subs at -35C 60 60 105 and LRGB 105 25 25 25
for the stars. Proline 16803, Astrodon 5nm Ha S11 and O111 filters.
http://www.pbase.com/gregbradley/image/137164599 regular
http://www.pbase.com/gregbradley/ima...64599/original large
Greg.