Ghosts of Cassiopeia

The main nebulosity in the picture is colloquially known as the Ghost Nebula, but in my opinion many of the surrounding dust clouds can also easily pass as ghosts. It’s a whole ghost town.This was the target I chose to test the new Optolong L-QEF / L-Queen light pollution filter. I placed my telescope in an area with street lights to be able to see what the filter does. It definitely removed the light gradients introduced by the street lights in the area - see my latest video for the comparison.