The ColourMagic 3 nm Narrowband Filter features an extremely narrow bandwidth combined with excellent light transmission, allowing the capture of high-contrast, low-noise deep-sky images even under challenging conditions such as urban light pollution, atmospheric airglow, or other sources of stray light. This performance makes faint nebular structures and subtle stellar details, which are often difficult to reveal, clearly visible. The filter also incorporates an optimized optical design for improved halo control, resulting in higher image quality and greater expressive power in astrophotography.

The ColourMagic 3 nm Narrowband Filter features an extremely narrow bandwidth combined with excellent light transmission, allowing you to capture high-contrast, low-noise deep-sky images even in environments affected by urban light pollution, atmospheric airglow, or other sources of stray light. This makes faint nebular structures and subtle stellar details, which are often difficult to reveal, clearly visible. In addition, the ColourMagic filter uses an optimized optical design for improved halo control, resulting in higher image quality and greater expressive impact in astrophotography.

The ColourMagic 3 nm Narrowband Filter features an extremely narrow bandwidth combined with excellent light transmission, allowing the capture of high-contrast, low-noise deep-sky images even in locations affected by urban light pollution, atmospheric airglow, or other unwanted light sources. This performance makes faint nebular structures and subtle stellar details, which are often difficult to detect, clearly visible. In addition, the ColourMagic filter incorporates an optimized optical design for effective halo control, ensuring higher image quality and enhancing the overall expressive power of astrophotography.

The ColourMagic 3 nm Narrowband Filter set features an extremely narrow bandwidth combined with excellent light transmission, allowing the capture of high-contrast, low-noise deep-sky images even in environments affected by urban light pollution, atmospheric airglow, or other stray light sources. This performance makes faint nebular structures and subtle stellar details, which are often difficult to reveal, clearly visible. In addition, the ColourMagic filters use an optimized optical design for effective halo control, resulting in higher image quality and greater expressive power in astrophotography.

A field flattener is an optical lens designed to correct the slight curvature of the image field produced by a telescope’s primary optics. This natural curvature causes stars near the edges of the field of view to appear less sharp. By correcting this effect, the flattener ensures that stars remain sharp and well-defined across the entire image, from center to edge.

A field flattener is an optical element designed to correct the slight curvature of the image field produced by a telescope’s primary optics. This natural curvature causes stars near the edges of the image to appear softer or out of focus. By compensating for this effect, the flattener ensures that stars remain sharp and well-defined across the entire field of view, from the center to the edges of the frame.

A field flattener is an optical lens designed to correct the slight curvature of the image field produced by a telescope’s primary optics. This inherent curvature causes stars near the edges of the field of view to appear less sharp. By compensating for this effect, the flattener ensures that stars remain sharp and well-defined across the entire image, from the center to the outer edges of the frame.

A focal reducer shortens the effective focal length of a telescope, making the optical system faster for astrophotography. As a result, images appear brighter, and the field of view is expanded, allowing larger sections of the sky to be captured in a single frame.

A focal reducer shortens the effective focal length of a telescope, making the optical system faster for astrophotography. This results in a brighter image and a wider field of view, allowing larger areas of the sky to be captured in a single exposure.

Astronomik XT filters for wide-angle optics are designed to deliver sharp, well-defined stars right into the corners of the image, even with extreme wide-angle lenses. With standard Astronomik filters, image quality at very short focal lengths can be limited. Although these filters use a glass substrate only one millimetre thick, certain wide-angle lenses can still introduce aberrations, causing stars near the edges of the frame to stretch into short lines.

Plano-parallel round optical discs with both surfaces precision-polished to lambda/10 accuracy ensure excellent optical quality. An advanced infrared anti-reflection coating, based on a multi-layer dielectric interference system, prevents excessive heat from entering the telescope’s optical tube assembly. The plano-parallel D-ERF (Energy Rejection Filter) effectively blocks infrared radiation, even during extended observing sessions.

The DayStar Quark Gemini combines both Prominence and Chromosphere bandpass filters in a single unit, allowing instant switching between the two views using a simple slide mechanism. Observers can now enjoy the strengths of both bandpasses in one easy-to-use tool, with no need to change equipment or refocus. By sliding the control arm side to side—much like during an eye exam—you can transition from the broader bandpass view, which highlights large, dramatic solar prominences, to the narrower bandpass view, delivering high-contrast detail of chromospheric features.