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TeleVue Ethos-SX 110 Degree Telescope Eyepieces

Item# TVU101
 
5.0

(1 Rating)

Customer Q & A
1. Focal Length:
4.7mm

Sale Price:

$619.00

List Price: $780.00
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Details & Dimensions
Guarantee & Returns
  • Amazing 110 Degree AFOV
  • Adapter for 2" format use
  • 15mm Eye Relief
  • Amazing Lunar and Planetary viewing
  • Available in 3.7mm and 4.7mm focal lengths

Description

Tele Vue 3.7mm and 4.7mm Ethos-SX (Simulator eXperience) - Worlds 1st Astronomical Eyepiece with 110° Apparent Field


Al Nagler eagerly pushed Ethos designer Paul Dellechiaie to extend the new 3.7mm focal length to reach 110°, the same field as the LEM Simulator optics Al designed 45-years ago to train NASA astronauts for lunar landings (See reverse side for material on the LEM Simulator). Years after the LEM program, the memory of the 110° view of the simulated lunar surface moving through the triangular cabin window of the LEM inspired Al to develop an “Ultra Wide Angle” (his patent title) telescope eyepiece to approach that “simulator experience.” When the 82° Nagler eyepiece hit the observing fields, it changed how amateur astronomers viewed the heavens. An early customer dubbed it a “spacewalk” view. Essentially, “the experience” is about creating an image as natural as one sees with the unaided eye. With Paul's help, Al's initial dream for amateur astronomers is now fully realized. The 3.7mm Ethos-SX is designed and crafted to combine its exceedingly wide field of view with all the contrast, color-rendition, distortion correction and center-to-edge sharpness needed to achieve that natural view. Beyond the desire to simply achieve 110°, the extended field of view gave Tele Vue the ability to produce a superb planetary eyepiece with a deep sky true field of view that logically fits within the rest of the Ethos eyepiece line. With 110°, the Ethos-SX has 21% more AFOV area than the 100° Ethos design. This permits a nice 62% power increase from a 6mm Ethos, while retaining 68% of its TFOV. The 3.7mm actually has more TFOV than our 8mm Plössl, 6mm Radian, and 5mm Nagler Type-6!  The 3.7mm is a 1¼" format and is parfocal with the wide range of 1¼" Tele Vue Plössls, Panoptics, Radians, Naglers, Nagler Zooms, and 6mm and 8mm Ethos eyepieces. The screw-on 2" adapter (included) is designed to make it parfocal with 13mm and 10mm Ethos when they are used in their 2" modes…Hey, it also doubles as a functional display stand!

 

We don't think we can aptly describe Al’s original experience of “flying over the moon,” but for the first time, YOU can experience what the astronauts saw four decades ago.

 

Specifications

 

  • Model: 3.7mm Ethos SX 110 Simulator eXperience
  • Apparent field - 110 degrees
  • Focal length - 3.7mm
  • Effective field stop diameter 7.04mm
  • Eye relief - 15mm
  • Weight - 17.7 oz.
  • Includes 2-Inch Adapter

 

CHOKING HAZARD - small parts may pose a risk to children under 6 yrs.

Shipping Restrictions:
Only ships in contiguous USA.

Dimensions & Specifications

Brand

TeleVue

Options

Focal Length:

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TeleVue Ethos-SX 110 Degree Telescope Eyepieces
 
5.0

(based on 1 review)

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(0 of 4 customers found this review helpful)

 
5.0

good lens great optics

By tom

from ma

About Me Professional Guide

Verified Buyer

Pros

  • Easy To Use
  • Good Padding
  • Great Optics
  • Strong Construction
  • Widely Compatible Adapter

Cons

    Best Uses

    • Astronomy
    • Astrophotography

    Comments about TeleVue Ethos-SX 110 Degree Telescope Eyepieces:

    good, nothing better today

    • Was this a gift?:
    • No

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