This is the first more or less adequate result with the Optolong L-eNhance 1.25 “filter. The filter cuts off most of the city light pollution, but at the same time passes the H-alpha, OIII and H-beta lines. Ghosting appears around bright stars, but personally they don’t bother me, I will continue testing the filter.
-Samyang 135mm f/2.0 ED UMC Canon EF lens
–Optolong L-eNhance 1.25″ filter
–ASI ZWO 183MC camera
-finder-guider 50 mm + QHY5III178m camera
-Sky-Watcher AZ-GTi mount.
30 frames per 120 s.
Calibration with PIPP, stacking with Fitswork.
Location: Russia, Anapa, backyard.
It is interesting to compare the result with another picture taken about a year ago with a monochrome camera QHY5III178m and a 12 nm H-alpha filter:
And here’s a fresh shot in the same scale and size, but with a ZWO 183 MC color camera and an Optolong L-eNhance 1.25″ filter: