ANTLIA ENERGY REJECTION FILTER 130mm Leonardo Match Model：

Match Model：

These Bessel-UBVRI filters are still standard today and are also the most widely used in amateur circles such as the AAVSO

5" LP onto the back of Schmidt-Cassegrain telescopes such as the Celestron 11" & 14" SCT and EdgeHD 925

2") SKU IO-3006-10

ANTLIA ENERGY REJECTION FILTER 130mm Leonardo Match Model：The Antlia 130mm Energy Rejection Filter is a multi coated dualband filter designed to reject the majority of light at both ends of the spectrum, with two narrow transmission windows of only 25nm half bandwidth around the H alpha and Calcium K & H lines. This enables safe usage of H alpha and Calcium solar filters with telescopes by preventing as much extra energy as possible from entering the telescope. The 130mm ERF is suitable for use on telescopes