Products
TeleVue 3-6mm Nagler Planetary Zoom Item ENZ-0306
ENZ-0306
- $659.00
Nagler Planetary Zooms Zoomable 50deg Constant Apparent Field Eyepieces
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Nagler Zooms
Zoomable 50° Constant Apparent Field Eyepieces
Zoomable 50° Constant Apparent Field Eyepieces
| 6 - 3-mm | |
| Model # | ENZ-0306 |
| Focal Length (mm) | 6 - 3 |
| Barrel Size (in.) | 1¼\" |
| Apparent Field of View (deg.) | 50 |
| Eye Relief (mm) | 10 |
| Weight (lb / oz) | 0.33 / 5.3 |
| Field Stop (mm) | 5.1 - 2.6 |
This model has click stops every mm.
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, 10, 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.
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