Light pollution is one of the main problems of every astrophotographer, no doubt about that. If you want to get rid of its orange-yellowish tint, you need either post-processing or a filter. We have recently presented you with PureNight Premium, a filter you can attach to your camera and reduce the effects of light pollution. It’s mounted onto your lens by using a standard square filter holder.
But Cyclops Optics, a Hong Kong-based company has another solution. They produce filters that can be clipped on – but onto your camera’s sensor.