Shot as the test that Samyang optical train can still focus with narrowband filters in them. These filters often shift focus, and focus availability is not the strong suit of these tele-lens. Focuses just fine, there is enough room for SharpCap auto-focus routines to work as well.

This shot that not real color calibration work. Since this is done through Hα-OIII filter, there a strong red Hα signal. Spectrofotometric calibration could balance the stars back to their reasonable color, but otherwise this is red tinted due to Hα abundance. This is also aesthetically pleasing to me.

There is still fairly visible amount of sensor tilt and backfocus problems, but nothing a simple touch of BXT would not resolve.

In some revisions, you can see the parts of Barnard’s Loop at the bottom.