Name: Used Tele Vue 13mm Ethos-SX 2" / 1.25" Eyepiece undefined
Brand: Tele Vue
SKU: US1507135
Price: 559.00 USD
Availability: Discontinued
Rating: 5 (8 reviews)

Tele Vue 13mm Ethos-SX 2" / 1.25" Eyepiece

Tele Vue Ethos

Tele Vue

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Optics & Binoculars

Telescopes & Astronomy

Telescope Eyepieces

Tele Vue Telescope Eyepieces

Tele Vue Ethos 

Open Box: Used Tele Vue 13mm Ethos-SX 2" / 1.25" Eyepiece undefined

Tele Vue is known for its in-house eyepiece and telescope designs by Al Nagler; our latest eyepiece brings new meaning to the term "in-house." The concept for this eyepiece was first proposed by Tele Vue 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 Tele Vue employee and optical design protege 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. At the 2007 Northeast Astronomy Forum, Tele Vue once again broadened the amateur astronomer's perspective on the universe and introduced a new observing experience; 100&#176; of pure Tele Vue quality. With a 13mm focal length evoking the original "Nagler" revolution, the field area of this new eyepiece is more than 50% larger than an 82&#176; field. The Tele Vue Ethos 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.   This is what Sky & Telescope Magazine has to say about this eyepiece   &#149; Optical Performance ***** (5 Star)  &#149; Sensibly perfect. No meaningful improvements possible.  &#149; Just as the original 13-mm Nagler set a new standard for deep-sky observing in 1981, the Ethos sets a new standard today. Owning one will guarantee long lines at your telescope during any star party.  &#149; [I]f I were dropped on a desert island tomorrow with the 12-inch scope and only one eyepiece, I'd want it to be the Ethos.  &#149; Some of the views were simply stunning. The globular cluster Messier 13 in Hercules appeared as a sprawling sphere with thousands of resolved stars, many sweeping outward in sinuous arcs.  &#149; Even under the most critical examination, bright stars look sharp and round across the entire field.  &#149; The Ethos hasn't sacrificed one bit of on-axis performance in achieving its 100� apparent field.  &#149; [T]he view of a starry sky with the Ethos and TV-NP127is is nothing short of breathtaking.  &#149; Besting the fields of other astronomical eyepieces by more than 20% in diameter and more than 50% in area, Ethos is a stunning optical achievement.

Used Tele Vue 13mm Ethos-SX 2" / 1.25" Eyepiece undefined

Very easy and smooth ordering process. Came very quickly, even with covid. The eye piece it did the ip's is great regarding the eye relief. Would highly recommend this piece.

Great eyepiece for your collection

Oh wow!!! It’s so wide I can still use it to do the alignments. But yes views are beautiful.

Outstanding!

The wide angle lets you see the moon close up and fits the entire moon in the viewer.  It's my go to lense for showing objects in the sky.

It's my go to lense for showing objects in the sky.

Scanning starfields across Milky Way yields gazillions of pinpoints of starlight!

Serves up clusters, nebulae galore!

Observing Saturn yields planetary banding, and gap between planet and rings!

Pros:  great brightness, contrast and resolution

Cons:  pricey...

Best binoview ever in Oberwerk BT-100/45

I use it with permanent f/4.5 29-inch Dob, Paracorr and Dioptrx. That's a lot of glass! The field is SO wide that although can see it all looking straight in, must move head to concentrate on edges. Measured throughputs in photometric labs: R=94.7%, G=93.7%, B=91.7% attest to great MARC coatings throughout. Wonderful on remote galaxies. Get one 13mm for your favorite higher mag - full set would be overkill. Use Naglers for other EFLs. Best on fast Dobs, overkill on slow scopes. Buffalo club visited and were all +++ impressed.

Amazing - almost TOO good!

I have used this 6mm eyepiece coupled with a small barlow on a TV-85 to get wonderfully close, sharp views of the moon, planets and other deep sky objects. As with other Ethos pieces, the field of view gives a whole new meaning to the phrase "space walk" - you get the feeling you're looking out a space craft. [...]

More Ethos magic from Tele Vue!

This is great in both my TV 85 and 4" Genesis.  Yes, it is a little expensive but the stunning views will make you forget.  Sell a few of your other eyepieces to afford it if you have to.  You'll be glad you did.

EXCELLENT- best view and contrast!!

I have had the most stunning views of the Moon that I have EVER seen through this eyepiece.  The Veil Nebula (with an O-III filter) was breathtaking!  I am getting rid of other eyepieces because this is mostly what I use now.

Used Tele Vue 13mm Ethos-SX 2" / 1.25" Eyepiece

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Tele Vue 13mm Ethos-SX 2" / 1.25" Eyepiece