For Horsehead, California nebula and other faint nebulae.
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.
MANUFACTURED IN THE U.S. Available for 1.25" and 2" eyepieces. Cells are color coded.