OPTOLONG L-QUAD ENHANCE FILTER harmonic For short refractors we recommend

For short refractors we recommend the BA2456317 Glasspath Corrector 2

5" dovetail Connection side B M114 x 1 male SKU TE-SCA260-ESATTO3

When the mount is set in alt-azimuth mode

The ZWO ADC is manufactured with UV-friendly AR coating

5mm such as ASI 120

OPTOLONG L-QUAD ENHANCE FILTER harmonic For short refractors we recommendThe new Optolong L Quad Enhance (L QEF) is a quad broadband astrophotography filter designed to drastically reduce the effect of light pollution under urban skies. Like the popular L Pro filter, the L QEF effectively blocks out the main sources of urban light pollution such as mercury and sodium streetlights while isolating deep sky objects. The L QEF's quad bandpasses are engineered to retain a natural colour balance of nebulae, galaxies and