ANTLIA ENERGY REJECTION FILTER 150mm TOE SkyWatcher EQ8-RH mount

SkyWatcher EQ8-RH mount

giving an excellent field of view for galaxies

which means more than one arcsecond per hour

Be sure not to overtighten the ring's bolts or else the camera may be damaged

The compression rings prevent eyepiece barrels from marring

ANTLIA ENERGY REJECTION FILTER 150mm TOE SkyWatcher EQ8-RH mountThe Antlia 150mm 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