Telescopes and Telescope Accessories from Celestron, Meade, iOptron, Zhumell and More at Telescopes.com
1-800-303-5873
GUEST#   0
Telescopes Super Sale

TeleVue ETHOS Telescope Eyepieces

Item# TVU098
 
5.0

(54 Ratings)

Customer Q & A
1. Focal Length Size:
6mm - 2 Inch / 1.25 Inch Format
8mm - 2 Inch / 1.25 Inch Format
10mm - 2 Inch / 1.25 Inch Format
13mm - 2 Inch / 1.25 Inch Format
17mm - 2 Inch Format
21mm - 2 Inch Format

Price:

$615.00 to $895.00

List Price: $740.00 to $1075.00
Save 17%
Free Shipping with Economy Service
Get it Tomorrow with FedEx 1 Day when you buy within

View All Shipping Options

Get it Monday with FedEx 1 Day when you buy today

View All Shipping Options

Qty
Add To Cart
Details & Dimensions
Guarantee & Returns
  • 100 Degree apparent field of view
  • Edge to edge viewing is simply amazing
  • The field area is more than 50% larger than an 82 degree!
  • This award winning eyepiece has won more awards than any other eyepiece
  • Gives you that "space walk" feeling when viewing
Free 1-Day Shipping!

Description

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, 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 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.

 

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; 100º 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 82º 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.

 

  • The 21mm focal length completes the logical set of 21mm/13mm/8mm and nicely juxtaposes the 17mm/10mm/6mm combination. Each step within these two sets approaches a 3x field area gain. The 21mm's effective field stop diameter is 36.2mm, bringing its true field close to the 35mm Panoptic (38.7mm Field Stop diameter). Its true field is also larger than the 26mm Nagler with its 35mm effective field stop diameter. In an f/4 Dobsonian, the exit pupil is just 5.25mm using the 21mm Ethos instead of 8.75mm with a 35mm Panoptic, or 6.5mm with a 26mm Nagler.

 

 

  • The 17mm ETHOS is an ideal complement to the 31mm Nagler Type-5. They are parfocal (both have focus locations about 3/8" above shoulder) and the 31mm Nagler Type-5 has exactly twice the true field area.

 

  • We have not specifically endorsed the 13mm Ethos for Bino-Vue use because of the large diameter barrel. Even so, we were advised by Mike Harvey at the Winter Star Party (February 2008) that only 1-person in 25 had interpupilary limits with the bino'd Ethos (63.5-mm for the initial production 13mm). However, since many of our customers have been thrilled with the experience, we have maximized the potential use by narrowing the barrel from 63.5-mm to 62-mm diameter for eyepieces delivered beginning mid-March 2008. While the difference is only 1.5-mm, (or 0.75-mm for pairing a first production unit with current production) we decided to make this small change public, in case you want to give it a try.


 

  • The 10mm is parfocal with the 13mm ETHOS. Its 59mm rubber grip diameter makes this model usable in binocular viewers — for most people.

 

  • The 8mm in 1¼" mode, if you use Tele Vue's "high-hat" 2"-1¼" adapter, it will be parfocal with Tele Vue's Plössls, Radians, Type 6 Naglers, Nagler Zooms, 1¼" Panoptics and 6mm ETHOS. Further, its light weight and small diameter makes the 8mm suitable for anyone using a binocular viewer. Another application is for spotting scope set-ups with the Tele Vue 60° 1¼" diagonal.

 

  • The 6mm in 1¼" mode, if you use Tele Vue's "high-hat" 2"-1¼" adapter, it will be parfocal with Tele Vue's Plössls, Radians, Type 6 Naglers, Nagler Zooms, 1¼" Panoptics and 8mm ETHOS.

 

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

Shipping Restrictions:
Only ships in contiguous USA.

Dimensions & Specifications

Brand

TeleVue

Telescope Eyepiece Series

Ethos Eyepieces

Focal Length Size

13mm , 17mm , 21mm , 6mm , 8mm

Options

Focal Length Size:

TeleVue ETHOS Telescope Eyepieces
Meade Series 4000 Telescope Eyepiece and Filter Set
$199.00
Meade Series 4000 Telescope Eyepiece and Filter Set
Zhumell 1.25 Inch 8-24mm Zoom Telescope Eyepiece
$59.98
Zhumell 1.25 Inch 8-24mm Zoom Telescope Eyepiece
TeleVue Delos Telescope Eyepieces
$315.00
TeleVue Delos Telescope Eyepieces
Zhumell Telescope 1.25 Inch Eyepiece and Filter Kit
$99.98
Zhumell Telescope 1.25 Inch Eyepiece and Filter Kit
Zhumell Z Series Planetary Telescope Eyepieces
$54.98
Zhumell Z Series Planetary Telescope Eyepieces

The Perfect Accessories

Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
TeleVue ETHOS Telescope Eyepieces
 
4.9

(based on 54 reviews)

Ratings Distribution

  • 5 Stars

     

    (51)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Great optics (47)
  • Strong construction (37)
  • Easy to use (28)
  • Widely compatible adapter (15)
  • Good padding (6)

Cons

  • Heavy (15)
  • Heavy / bulky (8)

Best Uses

  • Astronomy (49)
  • Astrophotography (3)
  • Terrestrial viewing (3)
    • Reviewer Profile:
    • Casual/ recreational (33), Avid adventurer (18)
    • Was this a gift?:
    • No (25)

Reviewed by 54 customers

Sort by

Displaying reviews 1-5

Back to top

Previous | Next »

 
5.0

perfect,the service and the eyepiece

By Stevs

from SPRING GROVE,MN

About Me Casual/ Recreational

Verified Buyer

Pros

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

Cons

    Best Uses

    • Astronomy

    Comments about TeleVue ETHOS Telescope Eyepieces:

    It arrived in one day and I used it the next night. I don't think there is any better eyepiece.

    • Was this a gift?:
    • No
     
    5.0

    Excellent views

    By Damian

    from LAKE WORTH,FL

    About Me Casual/ Recreational

    Verified Buyer

    Pros

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

    Cons

    • Heavy

    Best Uses

    • Astronomy

    Comments about TeleVue ETHOS Telescope Eyepieces:

    The most spectacular views I've yet to see .

    • Was this a gift?:
    • No

    (0 of 3 customers found this review helpful)

     
    5.0

    My first ETHOS Eyepiese

    By David

    from WOODLAWN,TN

    About Me Casual/ Recreational

    Verified Buyer

    Pros

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

    Cons

      Best Uses

      • Astronomy
      • Terrestrial Viewing

      Comments about TeleVue ETHOS Telescope Eyepieces:

      I just got my 13 mm Eyepiece in the mail but the weather isn't letting me use my telescope :(. I cant wait to use it.

      • Was this a gift?:
      • No
       
      5.0

      Great!

      By Kyle

      from OKLAHOMA CITY,OK

      About Me Avid Adventurer

      Verified Buyer

      Pros

      • Great Optics

      Cons

      • Heavy

      Best Uses

      • Astronomy

      Comments about TeleVue ETHOS Telescope Eyepieces:

      Very sharp image, wide field of view.

      • Was this a gift?:
      • No
       
      5.0

      WOW!

      By Kyle

      from OKLAHOMA CITY,OK

      About Me Avid Adventurer

      Verified Buyer

      Pros

      • Great Optics

      Cons

      • Heavy

      Best Uses

      • Astronomy

      Comments about TeleVue ETHOS Telescope Eyepieces:

      Amazing clarity and field of view through my SCT!

      • Was this a gift?:
      • No

      Displaying reviews 1-5

      Back to top

      Previous | Next »

      Customer Q & A

      Q1: I am considering the 13mm Ethos for a Meade EXT-LS, can this scope safely support the weight of this lens?

      A: The mount of the ETX-LS can handle the weight of the 13mm Ethos eyepiece.

      Ask a Question  

      Don't see the answer you need? Ask a Product Expert! The answer will be emailed to you and then posted here.

      Related Products

      The Tele Vue Panoptic Eyepiece series offers the best ...

      +MORE INFO

      The Tele Vue Panoptic Eyepiece series offers the best in telescopic viewing. These lower-power, wide-field eyepieces are a meaningful advance over any eyepiece in the 68-degree field class. The Panoptic's six-element, four-group optical design ...

      close

      TeleVue Delos 72° Apparent Field ...

      +MORE INFO

      TeleVue Delos 72° Apparent Field Eyepieces


      Concept: It was natural to take lessons learned from the tremendously successful Ethos project and apply it going forward. In the fall of 2008, Paul Dellechiaie was tasked ...

      close

      Since we introduced our Plössls in 1980, they have ...

      +MORE INFO

      Since we introduced our Plössls in 1980, they have won praise and patents, including a patent in Japan. Tele Vue Plössls, designed by Al Nagler, have been a recognized benchmark of performance and value in the class of 50-degree ...

      close
      Satisfaction Guaranteed
      1-800-303-5873
      GUEST#   0
      Telescopes.com is a Hayneedle Inc. store. Copyright 2007 - 2013 , Hayneedle Inc., all rights reserved.