Nagler Type-6 13mm Ultra Wide Field 1.25" Eyepiece with 82 Degree Field of View

Tele Vue Nagler Type-6 13mm Ultra Wide Field 1.25" Eyepiece with 82 Degree FOV

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. 82 Degree, 13mm 9mm, 7mm and 5mm focal lengths are a compact 7-element design using different exotic materials plus coating processes. Untouched is the full field pinpoint sharpness, but this series benefits from greater contrast. All focal lengths feature 12mm of eye-relief. High technology, parfocal 1 1/4" eyepieces, with 12mm eye relief. Perfect medium/high power eyepieces for the finest telescopes. Focal Length 13mm # of Lens Elements 7 Apparent Field 82 Degree Eye Relief 12mm Field Stop Diameter 17.6mm Weight 0.4 lbs.