This Used Tele Vue Nagler 17 Type 4 2" Eyepiece is in Good condition and includes end caps.
TeleVue 17mm Nagler Type 4 Eyepiece - 2" Features...
- The Type-4 models feature about 18mm of eye relief
- Yields more contrast, reduced pincushion, more true field, and longer eye-relief
- Blackened lens edges, anti-reflection threads and rubber eyeguards deliver maximum contrast
- Adapter skirts for 2" focusers on larger 1.25" models and rubber grip rings
- Click-stop Instadjust eyeguard helps maintain proper eye distance and centration
- Flat-field test instruments guarantees the performance of every Tele Vue eyepiece
TeleVue 17mm Nagler Type 4 Eyepiece - 2" Specifications...
Focal Length (mm): 17
Barrel Size (in.): 2"
Apparent Field of View (deg.): 82
Eye Relief (mm): 17
Weight (lb / oz): 1.60 / 25.6
Field Stop (mm): 24.3