Optolong L-Quad Enhance 2 Inch Filter 10289 through the use of a

through the use of a complex 20 layer dielectric coating stack

In this configuration you can use a simple 45mm dovetail plate with tripod screw (not supplied) and fit your camera directly using a ball head (not supplied)

The areas of light pollution are completely blocked

polarscope

Optolong L-Quad Enhance 2 Inch Filter 10289 through the use of aOptolong L Quad Enhance 2 Inch Filter L QEF cuts out light pollution from mercury and sodium lamps and produces a nice broadband image with minimal colour cast. This filter is a broadband filter that suppresses light pollution wavelengths. It is good for star clusters, dark and reflection nebulae, and galaxies from light polluted skies. L Quad Enhance Introduction L Quad Enhance Filter (L QEF) is a quad bandpass light pollution suppression filter for