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Ethos 13mm 아이피스


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※ 에토스 아이피스 13mm
본 제품은 텔레뷰사 최고급 아이피스입니다
주문하시고 약 10일 이내 받으실 수 있습니다.

Tele Vue 6mm Ethos Eyepiece - 1.25"/2" \950,000
Tele Vue 8mm Ethos Eyepiece - 1.25"/2" \950,000
Tele Vue 3.7mm Ethos Eyepiece - 1.25"/2" \990,000
Tele Vue 4.7mm Ethos Eyepiece - 1.25"/2" \990,000
Tele Vue 10mm Ethos Eyepiece - 1.25"/2" \990,000
Tele Vue 13mm Ethos Eyepiece - 1.25"/2" \990,000
Tele Vue 17mm Ethos Eyepiece \1,150,000
Tele Vue 21mm Ethos Eyepiece \1,300,000


텔레뷰사에서 2007년말 시장 출시한 화각 100도, 13mm 1.25" & 2" 겸용 최고급 아이피스. 국내에는 전문 동호인들 제품 Review 가 완료된 제품입니다. 그동안 명품 아이피스를 가격때문에 구입을 망설인 분 들에게 좋은 구입 기회를 제공 합니다. Televue - Tele Vue 13mm Ethos Eyepiece - 2"/1.25"


New Televue 13mm Ethos eyepiece. Yes, it's true....an eyepiece with a 100º field of view...more than 50% larger than a Nagler 82º field!


Maximum contrast has been achieved in the Televue 13mm Ethos by the use of flat finished baffles and specialty coatings that are tuned to the composition of each element.


Televue is calling the 13mm Ethos eyepiece a blend of several eyepiece designs, yielding the true field size of eyepieces with longer focal lengths and narrower fields with those that produce a darker sky background and higher magnifications.

The Tele Vue 13mm Ethos - An Introduction...
At the 2007 Northeast Astronomy Forum in New York, Tele Vue introduced attendees to a new observing experience with personal views through the new Ethos. With a 13mm focal length evoking the original “Nagler” revolution, the field area of this new eyepiece is, at 100º, more than 50% larger than an 82º field. The Televue 13mm Ethos eyepiece is essentially multiple eyepieces, delivering the true field size of a longer focal length, narrower apparent field eyepiece with the benefits of higher power and darker sky background.

Televue is known for its in-house eyepiece and telescope designs by Al Nagler. Televue's latest eyepiece brings new meaning to the term “in-house.” The concept for the 13mm Ethos eyepiece was first proposed by Televue President David Nagler, with performance parameters giving it the fundamental characteristics (the ethos) of a Tele Vue eyepiece: high contrast, comfortable eye relief and full field sharpness. Control of astigmatism, field curvature, lateral color, angular magnification distortion correction (technical reference), and low pupil sensitivity for daytime use were specified criteria.

Following Tele Vue’s philosophy of pushing the state of the art, long-time Televue employee and optical design protégé Paul Dellechiaie took up the challenge and designed the basic eyepiece form. Under Al’s guidance, Paul tweaked his design to fulfill the original goals.

While sharpness is inherent to the optical design, contrast is maximized through the intelligent use of flat finished baffles and ultra low reflectance, high efficiency coatings tuned to the composition of each element.

The Televue 13mm Ethos eyepiece has now been shown at NEAF, TSP, RTMC, as well as other major astronomy events. The Televue Ethos has been extremely well received by the astronomy community and will be one of the most highly anticipated products to be released in years.

Televue 13mm Ethos Specifications

Apparent Field: 100º

Focal Length: 13mm

Effective Field Stop: 22.4mm

Eye Relief: 15mm (accepts DIOPTRX™ eyesight astigmatism corrector)

Barrel Size: 2”/1¼”

Weight: 1.24 lbs.

A Field Report on the Televue Ethos - Al Nagler


The Ethos has now been shown at NEAF, TSP, RTMC, and EPOCH 2007. We thought you’d enjoy sharing in the experience by reading some of the comments written in our “comment” notebook. The following display was created for daytime observation using the Ethos in an NP127is at NEAF and TSP, and an NP101 at RTMC.

The left chart has circles representing field diameters of 50°, 60°, 68°, 82° and 100° with the telescope distance set so that the 100° circle matched the view of the Ethos field-stop. The “crosshairs” are actually small Saturn drawings in 5° increments to illustrate the linear angular-magnification correction. Illustrations of Saturn were placed at the center and edge of the field so contrast and detail (including newsprint dot patterns) could be evaluated.

The chart to the right is an artificial very-rich “star field” made (and conceived) by Rick Scheck in our scope production dept. The bright “star” reflections made a more realistic contrast simulation than simply viewing astronomical pictures and helped to give a “night sky” impression that nicely represented a dense Milky Way star field.

Real night-sky viewing was done two nights at the dark Prude Ranch location of the Texas Star Party using telescopes ranging from our NP127is to the prize winning 12” f/5.5 Newtonian of our own Scott Ewart. Ethos also made its way into various large Dobsonians including those of Barbara Wilson and Larry Mitchell.

At the Riverside Telescope Makers Convention in California, we had two clear, though very bright moonlit nights for evaluation. Using an NP101 and NP127is Ethos treated us to clusters such as M44 and M24.

At EPOCH 2007 in western Indiana, we were pleased to have one very clear evening to demonstrate Ethos with our NP127is and Chris Brownewell's 25" Obsession. Good Luck, Chris, on this new star party venture, and a big Thanx for being a great host.

On a personal note, I was especially moved by just showing a random star field to a little 10-year-old girl in a group visiting RTMC from Anaheim. Her only words: “Oh my god, it’s beautiful.” It doesn’t get any better than that.

Read Al Nagler's essay on the Majesty Factor of the Ethos Eyepiece


User Reviews


Review Date: 10/16/2007
Reviewed By:
Amazing (though out of my $ range
On October 13, 2007, I had the pleasure to view some objects with the 13mm TeleVue Ethos, through an 18 Obsession owned by a man named John at CALSTAR 2007. First, I want to thank him again. Second, the eyepiece amazing!!! Views of the Pegasus I galaxy cluster were wonderful. M42 was vivid and it seemed like I was going to fall into the eyepiece. As a hard working law school student, I long for the day when I can afford one of these amazing eyepieces. Al Nagler, thank you too!




Review Date: 12/5/2007
Reviewed By: Dave
Worth every penny..
Scary , this eyepiece brings you there ! Falling in truly does describe the view with this eyepiece. The satisfaction received when viewing through binoculars is duplicated with only one eye with this one , I cant wait to get two of these side by side in a bino configuration ! I do not want to look into the milkyway , I want to STAND IN IT ...and with this eyepiece , YOU DO! Very comfortable and easy to use and after about 15 minutes with it , it is not there and you are in outer space :- , you and scope become one. I have absolutely nothing negative to say about this wonderful eyepiece and 13mm is a nice starting point .



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