This 48 mm Light Pollution Suppression (LPS) P2 filter has been constructed so that common emission lines produced by artificial lighting are concealed, while crucial nebula emission lines are allowed to pass through. Therefore, the contrast of targeted celestial objects will be dramatically improved.
IDAS filters have been expressly manufactured using the novel IDAS Multi-Bandpass Technology (MBT) method for balanced color transmission, separating them from other light pollution suppression filters. This balanced color transmission permits color images to be captured with only the slightest color cast to stars, galaxies, and other broadband emission bodies.
Note: Light pollution suppression filters do not completely replace dark skies.