Single 30s sub vs. final image (6x30s)

Sub vs. Stacked vs. Processed

Sub: 40s, ISO 12.800 Stacked: 13 subs, median stack Final: Postprocessed

One vs. Many

Both images: @ZEISSLenses Milvus ZF.2 50mm f/2 macro planar lens, #Nikon d7100, Hutech IDAS LPS D1 67mm light pollution front filter, @uk_vixen GP mount unguided, ISO 1100 at f/2. Left: 180s, unprocessed sub. Right: 5 x 180s, calibrated, stacked and processed.

Processed vs unprocessed