The Televue 9mm Nagler Type 6 eyepiece is a compact 7-element design incorporating exotic glasses and coating processes to yield full field pinpoint sharpness. This is a 1.25" barrel design with an 82 apparent field of view and 12mm of eye relief. The Nagler 9 has blackened lens edges, anti-reflection threads and rubber eyeguards deliver maximum contrast. 100% full field visual inspection with TeleVue flat-field test instruments guarantees performance.
|Eyepiece Focal Length||9 mm|
|Insert Tube Size||Standard 1.25"|
|Apparent Field Of View||82 degrees|
|Field Stop||12.4 mm|
|Eye Relief||12 mm|
|Number of Elements||7 elements|
|Best Use||Deep Sky Objects, nebulae, Galaxies and small clusters|