The Astronomik Deep-Sky RGB Filter Set is designed for use with monochrome astro cameras equipped with CMOS or CCD sensors. It allows for nearly unparalleled image sharpness, contrast, and vibrant colors, especially when photographing deep-sky objects. We particularly recommend pairing the filter set with Astronomik's new L-1, L-2, or L-3 UV/IR filters.
During the design of the filter set, the main focus was on ensuring that its transmission curve aligns as closely as possible with modern sensors and the most important emission wavelengths, resulting in exceptionally good contrast and signal-to-noise ratio. An important consideration was to keep the size of stars as small as possible, enhancing the aesthetic quality of the image.
Like other Astronomik filters, the Deep-Sky RGB filter set is made from particularly durable and scratch-resistant glass, free from stresses and characterized by the most precisely crafted surface.
Main Features of the Astronomik Deep-Sky RGB Filter Set:
- maximum transmission 95%
- UV/IR coating
- outstanding contrast, pinpoint stars, excellent signal-to-noise ratio
- easily processable color-accurate raw material
- optical glass crafted to the highest quality standards
- particularly scratch-resistant surface
- MFR coating for use across a wide focal ratio range

