Celestron 93422 X‑Cel LX 7mm eyepiece 🔭

This 1.25 inch, 7 mm eyepiece from Celestron’s X-Cel LX series is aimed at planetary observation and high-magnification viewing with a comfortable, compact design. It delivers a 60° apparent field of view and refined contrast for lunar and planetary detail, making it suitable for focused observing sessions at the eyepiece.

Key Points

The eyecup is made of removable rubber that improves comfort and helps to block stray light, and it can be twisted up or down to suit users with or without glasses. The barrel is threaded for 1.25 inch standard filters, so colour and contrast filters can be attached quickly. According to the manufacturer, multiple lens coatings are applied across the optical elements to reduce reflections and improve image clarity. The rubber grip ring around the barrel provides a non-slip hold, which can be useful on cold nights or when wearing gloves. Note that as a 7 mm focal length piece it will produce higher magnification compared with longer eyepieces, which may reduce the field of view on smaller telescopes.

Technical Specifications

• Name: Celestron 93422 X-Cel LX 1.25" 7mm Eyepiece
• Apparent field of view: 60 degrees
• Barrel size: 1.25 inch, threaded for filters
• Eyecup: removable rubber, twist-up/down operation
• Optical treatment: multi-coated lens elements
• Colour: black

Benefits

Optically, the multi-coated glass aims to deliver sharper, higher-contrast images of planets and the Moon, which helps when trying to resolve subtle surface details. The relatively wide 60° apparent field for a 7 mm eyepiece allows a balance between immersion and high magnification. Mechanically, the rubber eyecup and grip ring make handling more comfortable and reliable during field use. For those who prioritise planetary work, this eyepiece offers a compact option that can be easily carried in a kit pouch or eyepiece case.

Usage Recommendations

Use this eyepiece on medium to large aperture telescopes when you want to push magnification for planets, lunar observing or close double-star work. In practice, ensure the telescope is well collimated and the atmosphere is steady for the best detail, because higher magnifications magnify atmospheric turbulence as well. Attach compatible 1.25 inch filters by screwing them onto the threaded barrel when adjusting contrast or experimenting with different wavelengths. Consider pairing the eyepiece with a stable mount and good seeing nights to get the most from its resolving potential.

Note that a 7 mm focal length will not be the best choice for wide-field views of star fields or extended deep-sky objects. According to the manufacturer, this model is optimised for planets and other small, high-contrast targets rather than low-magnification surveying.