The Tele Vue 11mm Type 6 Nagler eyepiece 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, TeleVue 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 Type 6 model, and all are sized about the same as the original 7mm! The 11mm Nagler Type 6 slots in perfectly between the 13mm and 9mm Type 6s and makes a perfect companion to the 7mm.
All Tele Vue Nagler eyepieces have proprietary tuned full multi-coatings, blackened lens edges, high index glasses, fold-down eyeguards, rubber grip rings, cover for the eyeguard, an undercut in the barrel for extra locking security, and filter threads. All Tele Vue eyepiece lines are proprietary, in-house designs manufactured to their specifications and tolerances. Every eyepiece is individually tested at Tele Vue to ensure it meets high optical and cosmetic standards.
Take a "spacewalk" across a wide, sharp 82° apparent field
Compare a penny to a half dollar to see the relative size between a 50° and 82° apparent field - almost 3 times the area difference! And while others boast of impressive apparent field sizes, Tele Vue's philosophy of "showing no field unless it's fine" stresses full field image quality as the ingredient for impressive views. Blackened lens edges, anti-reflection threads and rubber eyeguards deliver maximum contrast. Adapter skirts for 2" focusers on larger 1¼" models and rubber grip rings are additional Tele Vue "firsts". Even 2"/1¼" barrel models have an additional feature allowing the 2" extension tube (EBX-2120, sold separately) to be screwed on, which permits use of 2" filters as well as 1¼". 100% full field visual inspection on TeleVue's flat-field test instruments guarantees the performance of every Tele Vue eyepiece.
Concept: "You may know there's a long history of naming eyepieces after their designers: Kellner, Erfle and Plossl, to name a few. In the late 70's I designed an eyepiece sufficiently radical that I dared attach my name to it. Even today, I must admit a little discomfort when talking about "Nagler" eyepieces.
With "Naglers", my aim is to approach the wide angle perspective of naked eye vision, while maintaining the highest degree of sharpness, contrast, and viewing comfort. The goal is to allow the telescope to virtually "disappear," leaving the impact of "spacewalk" viewing." — Al Nagler
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, 12mmfocal length range.
astroducky New Member
- Skill Level
- Time with Product
Nov 17, 2007
- User Notes:
11mm Type 6 NaglerPros:
1. Excellent opticallyCons:
2. Light weight and small size
3. Parfocal with other type 6 Nagler
1. Not usable for people who need to wear glassesComments:
Not many people talk about the 11mm Type 6 Nagler. It is actually my most used eyepiece for Deep Sky Objects as it gives about 2.2mm exit pupil, 140x and 0.5 degree true field on my 12.5" f/5 Dobsonian. It is great for viewing star clusters, larger globular clusters, galaxies and planetary nebulae at this setting.
This eyepiece, like all other Type 6 Naglers, provides high contrast and sharp views. I find my particular sample is very capable. Even when barlowed with a mediocre barlow, it gives high detailed planetary views that rival that of high quality orthoscopic eyepieces of about the same focal length. I am really impressed with this eyepiece and I bought the adapter to mount my Dioptrx (as I have astigmatic eyes). With this modification, stars are even sharper now and it is even easier to 'take in' the 82 degree AFOV.Sort by
|Apparent Field of View||82°|
|Barrel Size||1.25" (31.7mm)|
|Bolt Case Included||Yes - Free Agena Eyepiece Container|
|Bolt Case Size||Agena 52x80mm|
|Max Width||1.6" (40.6mm)|
|Eye Relief by Design||12mm|
|Field Stop Diameter||14.9mm|
|Filter Threads||Standard 1.25" Filter Thread (M28.5 x 0.6)|
|Rubber Eye Guard||Yes|
|Blackened Lens Edges||Yes|
- Suitable for use with Tele Vue Bino Vue binoviewer
|Eyepiece Focal Length||10.1mm - 15mm|
|Eyepiece Field of View||Over 80 degrees|
|Eyepiece Series||Tele Vue Nagler|
|Barrel Type||With safety undercut|
|Eyepiece Weight||6.70oz (189.94g)|