Inspired by NZUSA rendition I had a go at IC4592 Blue Horse Reflection Nebula! 16.5 hours using a Samyang 135mm at 2.0 with an ASI 533MC pro. I processed this at least 5 different ways and finally came up with this. Tried out my new all in one lens holder, auto focuser housing, and guide scope plus asiar all in one unit. It was 5 min subs x 199 . Bortle 5 and svbony uvir.
Astrobin
https://astrob.in/v4z9ed/0/