Hello,
here my ha version with the TEC200.
The 50% version shows the same details of version like 100% of version
TEC200 @ 1400mm
ATIK 383
Astrodon 3nm ha filter
23x1800s
Processing Startools and PS3
http://www.astronomieclub-volkach.de.../ngc6888ha.jpg
Narrowband version with ha and o3 will follow.