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TeleVue 9mm Nagler Type 6

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TeleVue 9mm Nagler Type 6

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5 customer reviews

 

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.

 

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Most Helpful Customer Reviews

Great Little Lens

By Kimball Corson on October, 17th 2009

This 9mm is better than its predeceor in regard to contrast especially, and also sharpness, but to a lesser degree. It is a little and light lens that is great for smaller lightly balanced dobs and compact refractors.

Outstanding!

By James A. Edwards on October, 17th 2009

I liked my 9 nag type 6 so much, I went and purchased a second 9 to use in my TV bino-viewer...Simply put, One outstanding eyepiece, a must for your collection!

9 mm NT6

By Steve Bell on October, 17th 2009

I replaced an 8.8mm Series 4000 UWA with the 9mm NT6 and I dont miss the 8.8 at all. Contrast is extremely good on solar system objects, in fact, as good or better than my UO 9mm Ortho. Ive eliminated two eyepieces from the eyepiece case.

Dont Pluto this Nine!

By Michael McNeely on October, 17th 2009

I had often considered obtaining the older Type 1, 9mm Nagler, but I wasn’t particularly fond of the size of the eyepiece and its double-skirt, 2/1.25 inch tube. As a result, I was very excited when the new Type 6 Naglers were released. Al had transformed his 2-inch Goliaths into smaller Davids-lighter, more convenient eyepieces. I initially purchased the 13mm Nagler Type 6, and later the 9mm. I found it remarkable that Al had been able to transform eyepieces of such disparate sizes into a general set featuring similar housings, eye reliefs, and weights. With their 82-degree apparent fields, sharp optics, and comfort of use, the Type 6s must surely rank as the nicest 1.25-in eyepieces available today. With a TV-85, the 9mm Nagler produces 67x with a 1.2-degree true field. At this magnification, planet surface features are starting to become apparent, yet the entire body is surrounded by black sky. Planets in the TV-85 with the 9mm Nagler resemble jeweled orbs suspended in the abyss of space. This eyepiece also provides a good medium power for observing deep sky objects. Highly recommended.

It meets my high expectations

By Charles Zdeb on October, 17th 2009

The Nagler 9 Type 6 is an expensive high-end eyepiece, and it performs like it. It takes a little effort just to see the field stop without turning my head, and the stars are very tight across the entire field in my f/6 Newt. Saturn hardly distorts even at the field stop. Contrast and sharpness are excellent, Ill need better seeing to tell if there is a difference between this and a 9mm Ortho I have. The only reason I dont give it a ten is that it would be nice to have a few more mm of eye relief.

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