Enhance your deep sky viewing with the latest in multi-layer coating technology. Over three years in development. Our filters transmit desired wave-lengths in a very steep slope vs. gentle transition slopes in competitive brands. This means better contrast and overall performance.
Cells are color coded.
For slight to moderately light-polluted ares. For heavily light polluted areas. For diffuse and planetary nebulae. For Horsehead, California nebula, and other faint nebulae.