TS Optics Premium 7.5mm Flat Field 60° 1.25″ Eyepiece

TS Optics Premium 7.5mm Flat Field 60° 1.25″ Eyepiece

A High-Quality Eyepiece for Every Observer

The TS Optics Premium 7.5mm Flat Field eyepiece delivers outstanding optical performance for both beginners and experienced astronomers. With a focal length of 7.5mm and a wide 60° field of view, it offers comfortable, panoramic views of the night sky. The six-element, four-group optical design provides excellent correction across the entire field of view. The result is a sharp, high-contrast image with accurate colour rendition - even with fast optical systems.

Fully Multi-Coated Optics

Full multi-coating on every glass-to-air surface maximises light transmission and minimises reflection losses. This multi-layer coating significantly increases image contrast and suppresses unwanted reflections and ghost images. The interior barrel features a matt black finish that further improves contrast during observation. A rubber eyecup provides comfortable eye placement and effective shielding from stray light.

Comfortable Design - Even for Glasses Wearers

The 16mm eye relief is generous enough for observers who wear glasses. You can observe comfortably without removing your glasses. The barrel is solid and precisely machined, ensuring a firm, wobble-free fit in any focuser. The eyepiece has no safety groove, which may seem like a drawback at first - but this design actually prevents the eyepiece from tilting inside the focuser when the thumbscrew is tightened. The overall build feels robust and well-finished, while the weight remains manageable for observers in the field.

The standard 1.25″ barrel is compatible with the vast majority of telescopes available on the market today.

What Can You Observe with This Eyepiece?

Deep-Sky Objects

Observing deep-sky objects is greatly aided by the high light transmission delivered by the FMC coating. Nebulae, star clusters and galaxies appear with maximum detail and natural brightness.

Moon and Planets

The matt black interior is key for lunar and planetary observation. It suppresses scattered light and increases the contrast of fine details on planetary discs. The Moon's surface shows crisp, well-defined features with excellent shadow detail.

Double Stars

Double stars are resolved with excellent clarity. Even the fainter component remains visible close to a bright primary star, thanks to good aberration correction across the field.

Binocular Viewing

This eyepiece is an excellent choice for binocular viewing setups, where consistent image quality between both eyes and comfort during extended sessions are especially important.

Eyepiece Projection Photography

The compact, slim profile makes this eyepiece easy to use with eyepiece projection adapters. This is particularly useful when photographing lunar or planetary detail, as eyepiece projection significantly increases the effective focal length of the optical system.

Who Is This Eyepiece For?

This is an ideal choice for beginners looking for a quality eyepiece for a telescope with a good price-to-performance ratio. The comfortable eye relief, straightforward use and excellent image correction mean you can enjoy astronomy from your very first session.

Experienced observers will appreciate the optical quality, multi-layer coatings and suitability for more demanding applications such as astrophotography or visual observation with fast refractors.

About TS Optics

TS Optics is a well-established European brand specialising in astronomical optics and accessories. The Premium Flat Field eyepiece range is the result of long-term collaboration with professional astronomers and optical engineers. TS Optics eyepieces are valued for their excellent price-to-performance ratio, solid mechanical build and optical quality that rivals much more expensive alternatives. The brand offers a wide range of eyepieces for different telescope types and observing needs - from planetary viewing to deep-sky observation and astrophotography.

Technical Specifications