Eyepiece Celestron Luminos 19 mm — 19 mm focal length, 2 cm, 459 g, black/blue/orange/silver

The Celestron Luminos 19 mm eyepiece provides a 19 mm focal length (2 cm) designed for medium-power observation with an 82° apparent field of view. Constructed for compatibility with a wide range of telescopes, including short, fast refractors and Celestron EdgeHD models, this eyepiece combines a multi-element optical design with full multi-coating to deliver crisp, high-contrast views for both astronomical and terrestrial targets. The barrel accepts standard filters and the body is anodized aluminum with a rubber grip and a retractable eyecup for adjustable eye relief. Available finishes include black, blue, orange and silver.

Advantages

The Luminos 19 mm offers a wide 82° field of view that increases situational awareness and framing of extended objects such as star clusters and large planetary features. Its multi-element, fully multi-coated optics reduce reflections and enhance contrast and sharpness across the field. The parfocal design minimizes refocusing when switching between eyepieces, streamlining observing sessions. Mechanically, the anodized aluminum body and rubberized grip provide durability and comfortable handling, while the threaded barrel enables use of screw-in filters.

Suitable for

• Astronomical observation of the Moon, planets, star clusters and nebulae at medium magnification
• Terrestrial viewing where a wide apparent field and comfortable eye relief are desired
• Observers who switch eyepieces frequently thanks to the parfocal design
• Telescopes with standard 1.25" or 2" focuser compatibility (confirm adapter as needed)

Key specifications

• Focal length: 19 mm (2.0 cm)
• Apparent field of view: 82°
• Optical design: multi-element configuration (6 or 7 elements depending on model), fully multi-coated
• Materials: anodized aluminum body with rubber grip and retractable eyecup
• Filter compatibility: threaded insert barrel for screw-in filters
• Weight: 459 g
• Finish options: black, blue, orange, silver

How to use

Install the eyepiece into your telescope’s focuser or diagonal and secure it according to your instrument’s mounting method. If you use multiple eyepieces, take advantage of the parfocal property to swap eyepieces with minimal refocusing; fine-tune focus after changing. Twist the rubber grip to raise or lower the retractable eyecup to achieve the most comfortable eye relief and to reduce stray light. If required for imaging or enhanced contrast, screw appropriate filters into the threaded insert barrel before observing.

Usage recommendations

For best results, use the Luminos 19 mm eyepiece on telescopes that provide the intended medium-power magnification without exceeding the telescope’s useful magnification limit. Allow optics to reach thermal equilibrium with outdoor conditions for optimal sharpness, and store the eyepiece in a padded case to protect the multi-coated elements and finish.