Tele Vue 7mm Nagler Type 6 Eyepiece - 1.25
| Article number: | EN6-07.0 |
| Availability: | In stock |
| Delivery time: | In Stock |
* The Televue 7mm 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 82º apparent field of view and 12mm of eye relief.
* The Televue 7mm Nagler Type 6 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.
| 7-mm | |
| Model # | EN6-07.0 |
| Focal Length (mm) | 7 |
| Barrel Size (in.) | 1¼" |
| Apparent Field of View (deg.) | 82 |
| Eye Relief (mm) | 12 |
| Weight (lb / oz) | 0.50 / 8.0 |
| Field Stop (mm) | 9.7 |
Nagler Type 6
The 7-element, Nagler Type 6 design is based on the original patented Nagler design. This new 7-element design update for the short focal length Nagler deserves its own designation. Using different exotic materials, coating processes and design ingenuity, Al has massaged more eye-relief, contrast, and true field of view into the shorter focal length Naglers, while maintaining the absolute sharpness of the originals. Eye-relief is 12mm on each model, and all are sized about the same as the original 7mm! Weight about 0.4 to 0.5 lbs.
Concept: The goal we set designing these new eyepieces was to increase contrast, maintain or increase eye-relief, reduce size and weight, and maintain the sharpness of the originals. They are all parfocal and great with the Bino Vue.
Why Are There 3 Types of Naglers?
To achieve the full magnification range over 82° apparent field of view requires two types: Nagler Type-5 with focal lengths of 31, 26, 20, 16mm and Nagler Type-6 with focal lengths of 13, 11, 9, 7, 5, 3.5, 2.5mm.
The Type-5 permits the largest true field possible (31mm has 42mm field stop), while the shorter focal length Type-6 models are parfocal, with similiar size and weight and all with a comfortable 12mm eye relief.
The Type-4 models feature about 18mm of eye relief and with the "instajust" eyeguard are best for eyeglass wearers or Dioptrx users in their 22, 17, 12mm focal length range.