18mm Flat-Field Eyepiece — 65° AFOV, 20mm Eye Relief

• Flat field design: Corrected field curvature delivers a sharp, usable image from centre to edge.
• High image quality: Fully multi-coated optics with blackened lens edges minimise reflections for excellent contrast and colour purity.
• 8 elements in 5 groups: Optimised optical layout for clean, high-fidelity views.
• Comfortable viewing: 65° apparent field of view keeps stars, planets and lunar detail in focus across the field; generous 20mm eye relief suits extended observing sessions.
• Versatile eyecup: Fold-up rubber eyecup works with or without glasses; remove the eyecup to expose an M42 × 0.75 thread for basic afocal/eyepiece-projection astrophotography.
• 18mm focal length: A medium-power eyepiece offering bright views of the Moon and most deep-sky objects.

At a glance

Note: Actual magnification and exit pupil depend on your telescope’s focal length and f-ratio.

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