Used Tele Vue Tele Vue 4.8mm Nagler 1.25" Ultra Wide Field Eyepiece with 82 Degree Field of View.

Nagler 4.8mm (original) - Highest power. Has 5 times the field area and astounding eye-relief compared to standard eyepieces in this focal length range. Includes rubber eyeguard, 1 1/4" barrel and parfocalization.

Blackened lens edges, anti-reflection threads and rubber eyeguards deliver maximum contrast. 100% full field visual inspection on our own flat-field test instruments guarantees the performance of every Tele Vue eyepiece.