StellaMira 90mm ED Triplet f/6 Carbon Fibre Apochromatic Refractor Telescope

The StellaMira 90mm ED Triplet f/6 Apochromatic Refractor has been designed for astronomers seeking premium optical performance in a compact and highly portable package. Whether capturing wide-field deep-sky images from a dark-sky location or enjoying high-contrast visual observations from the garden, this versatile refractor offers the optical quality expected from a modern ED triplet design.

Its air-spaced triplet objective incorporates an ED glass element to minimise chromatic aberration and produce clean, natural colour rendition. Bright stars remain tightly controlled with minimal colour fringing, while the excellent contrast allows subtle detail within nebulae, galaxies and lunar features to be resolved with impressive clarity.

The combination of a 90mm aperture and 540mm focal length makes this telescope particularly attractive for wide-field astrophotography. Large emission nebulae, open clusters and rich Milky Way star fields can all be framed comfortably, while the fast f/6 focal ratio allows efficient image acquisition during long imaging sessions.

The telescope is equally at home as a visual instrument. The triplet optics deliver crisp, contrast-rich views of the Moon and planets, while the relatively short focal length provides expansive low-power views that are particularly rewarding when observing large deep-sky objects under dark skies.

A robust 3″ dual-speed rack-and-pinion focuser provides the stability required for today’s astrophotography equipment, supporting cameras, filter wheels and electronic focus motors with confidence. The precision 1:10 fine-focus mechanism allows accurate critical focus, while the rotatable focuser simplifies camera framing without disturbing the telescope’s position on the mount.

For imagers wishing to tailor the telescope to different targets, dedicated optional optical accessories allow the system to become even more versatile. An optional field flattener provides pinpoint stars across larger camera sensors, while an optional focal reducer creates a faster, wider-field imaging system for capturing expansive nebulae and reducing exposure times.

The optical tube is CNC-machined throughout and supplied with precision tube rings, a carry handle, and a Vixen-style dovetail bar, creating a rigid and reliable platform for both visual and imaging use. Its modest weight also makes it an excellent companion for lightweight equatorial mounts, making transport and setup quick and straightforward.

Whether purchased as a first dedicated astrograph or as a portable companion to a larger observatory telescope, the StellaMira 90mm ED Triplet f/6 offers an excellent combination of optical performance, mechanical quality and imaging flexibility.