If you have to observe from light polluted sites (like most of us...), imaging with Narrowband-Emission line filters is the best way to take great images, as all kinds of light pollution can be blocked with these.

This Hydrogen α filter blocks all unwanted light from artificial light-pollution, natural airglow and moonlight. Especially light from High- and Low-Pressure Sodium and mercury lights and all lines of natural airglow are 100% blocked. The filter increases the contrast between the sky-background and objects glowing at the H-α line at 656nm and allows for deep and contrasty images even with very heavy light pollution or with the full moon high up in the sky!