An enjoyable observing session last night under my Bortle 4 skies west of Tucson. Again I used my 40-yr old Celestron 8-inch SCT on an Evolution Alt-Az mount (no guiding, no wedge). Camera used was ASI 385MC operating at F/4 using a Meade 3.3 focal reducer. This time I used an Astronomik CLS filter, so I used Gain 350 to keep the subexposures to 15 seconds. SharpCap Pro 3.2 live stacking with master dark and saved as viewed (only reduced in size and converted to JPG for posting here).
I didn't notice much difference with using the CLS filter under my skies (at least, not enough to matter for outreach events), so if skies are dark enough, I won't use the filter.
IC 342 15secx27 Gain 350, 8-inch SCT@F/4, Evolution Alt-Az mount, 385MC camera with CLS filter
M81, 15x20sec, Gain 350, 8-inch SCT@F/4, Evolution Alt-Az mount, 385MC camera with CLS filter