Tele Vue Eyepieces

  • Ethos Eyepieces
  • Radian Eyepieces
  • Panoptic Eyepieces
  • Nagler Eyepieces
  • Plossl Eyepieces
  • Eyepiece Carrying Bag



    • Ethos™: The "Majesty Factor"

    TeleVue continues to expand its Ethos eyepiece line with introduction of the 10mm and 21mm oculars. Debuting in Spring 2009, the 10mm Ethos eyepiece bridges the gap between the previously released 8mm and 13mm eyepieces. At the other end of the size range, the 21mm Ethos has been planned for delivery starting in mid-December.

    The Ethos ocular series has met with rave reviews since the release of the 13mm eyepiece at NEAF 2007. With its full 100 degree field of view, high contrast and full-field sharpness, this ocular essentially operates as multiple eyepieces in one. It provides the true field size of an eyepiece with longer focal length and narrower apparent field with the benefits of higher magnifications and darker sky background.

    As well as matching all the key performance criteria of the 13mm sibling, the new 8mm version is also parfocal in 1¼" focusers with Radians, Plössls, Type 6 Naglers and 1¼" Panoptics. Further, its lighter weight and smaller diameter than the 13mm Ethos makes the 8mm suitable for anyone using a binocular viewer. In comparing it to the 8-24mm Zoom eyepiece, the 8mm Ethos has the power of the 8mm Zoom and 83% of the field of the 24mm setting!

    Read what the folks at Tele Vue had to say about this ocular series:

    "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 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."

    We think you'll like what you see.

    Type Part # Focal length
    (mm)     		Barrel Size
    (in.)     		# Elements/
    #groups

    Apparent field-
    of-view (deg.)

    		 Parfocal
    Group    		 Eye-Relief
    (mm)

    Weight
    (lb/oz)


    Ethos ETH210 21 2"   100   15 2.25/36.0
    Ethos ETH170 17 2"   100   15 1.55/24.8
    Ethos ETH130 13 2" & 1.25"   100   15 1.20/19.2
    Ethos ETH100 10 2" & 1.25"   100   15 1.10/17.6
    Ethos ETH080 8 2" & 1.25"   100   15 .98/15.7
    Ethos ETH060 6 2" & 1.25"   100   15 .97/15.5
    Ethos SX ETH047 4.7 2" & 1.25"   110   15 1.30/20.8
    Ethos SX ETH037 3.7 2" & 1.25"   110   15 1.10/17.6

    Remember: Our prices INCLUDE insured standard ground shipping to U.S. customers in the 48 contiguous states!
    View Product Catalog
    Back to top


    Radian Eyepieces

    With the contrast and sharpness developments from the Nagler type eyepieces as a conceptual springboard, Tele Vue set about designing oculars that would also meet the increasing demand for longer eye-relief. The result: the Radian. Each eyepiece has a comfortable 20mm of eye-relief.

    Also developed for this eyepiece is the "Instadjust" eyeguard. Click-stop adjustments allow non-eyeglass wearers to find the best position to maximize suppression of stray light. The new Pupil Guide helps focus in and stay centered on the exit pupil; it fits under the soft, fold-down eyeguard.

    Radians are available in 18mm, 14mm, 12mm, 10mm, 8mm, 6mm, 5mm, 4mm, and 3mm.

    Type Part # Focal length
    (mm)     		Barrel Size
    (in.)     		# Elements/
    #groups

    Apparent field-
    of-view (deg.)

    		 Parfocal
    Group    		 Eye-Relief
    (mm)

    Weight
    (lb/oz)
    Radian ERD140 14 1.25 6 / 4 60 B 20 0.54 / 8.7
    Radian ERD060 6 1.25 7 / 5 60 B 20 0.79/12.6
    Radian ERD050 5 1.25 7 / 5 60 B 20 0.80/12.8
    Radian ERD040 4 1.25 7 / 5 60 B 20 0.76/12.1
    Radian ERD030 3 1.25 7 / 5 60 B 20 0.77/12.3


    Back to top


    Panoptic Eyepieces

    As the Radian design started with wide-field design concepts, the Panoptic eyepiece group also used those principles as a base but sought to bring the famous Nagler-like, high-contrast performance to an ocular with a larger field-of-view. Each Panoptic boast 68 degrees apparent field-of-view with tack-sharp images. Comfortable eye relief reaches approximately 70% of focal length.

    Additional features include an undercut in the barrel for extra locking security and a cover for the eyeguard.

    Available in 41mm, 35mm, 27mm, 24mm and 19mm.

     

    Type Part # Focal length
    (mm)     		Barrel Size
    (in.)     		# Elements/
    #groups

    Apparent field-
    of-view (deg.)

    		 Parfocal
    Group    		 Eye-Relief
    (mm)

    Weight
    (lb/oz)
    Panoptic EPO410 41 2 6 / 4 68 A 27 2.10/33.6
    Panoptic EPO350 35 2 6 / 4 68 C 24 1.60/25.6
    Panoptic EPO270 27 2 6 / 4 68 A 19 1.03/16.4
    Panoptic EPO240 24 1.25 6 / 4 68 B 15 0.51/8.2
    Panoptic EPO190 19 1.25 6 / 4 68 B 13 0.41/6.6


    Back to top


    Nagler Eyepieces

    Type 4

    With the goal of achieving a wide angle perspective similar to that of the naked eye while not compromising the high degree of contrast and sharpness, Al Nagler set about designing the eyepieces that would bear his name. Type 4 Naglers achieved these objectives, as well as incorporating longer eye-relief. This group of eyepieces also makes use of the "Instajust" eyeguard seen on the Radians.

    Available in focal lengths of 22mm, 17mm, and 12mm.

     

    Type 5

    The Type 5 Nagler eyepieces have a unique, 6-element design that maintains the contrast advancements of the Type 4 while also providing a very wide field of view. Several different extra-low dispersion glasses and specialized coatings are used for the remarkable contrast and longer eye relief than earlier Nagler designs. The new material allows these oculars to be much lighter than their predecessors, the Nagler Type 2s.

    The 31mm, 26mm, and 20mm eyepieces have a 2-inch barrel size, while the 16mm is a handy 1.25 inches.

     

    Type 6

    Increased eye relief, contrast, and true field-of-view were worked into these shorter focal length eyepieces. This version utilizes a new, 7-element design of different exotic material and coating processes and still achieves the same sharpness as the originals. All the eyepieces in this collection offer 12mm of eye relief.

    Available in focal lengths of 13mm, 11mm, 9mm, 7mm, 5mm, 3.5mm and 2.5mm.


    Type Part # Focal length
    (mm)     		Barrel Size
    (in.)     		# Elements/
    #groups

    Apparent field-
    of-view (deg.)

    		 Parfocal
    Group    		 Eye-Relief
    (mm)

    Weight
    (lb/oz)
    Nagler 5 EN5310 31 2 6 / 4 82   19 2.20/35.2
    Nagler 5 EN5260 26 2 6 / 4 82   16 1.60/25.6
    Nagler 4 EN4220 22 2 7 / 5 82   19 1.50/24.0
    Nagler 5 EN5200 20 2 6 / 4 82 C 12 1.04/16.6
    Nagler 4 EN4170 17 2 7 / 5 82   17 1.60/25.6
    Nagler 5 EN5160 16 1.25 6 / 4 82 B 10 0.44/7.1
    Nagler 6 EN6130 13 1.25 7 / 4 82 B 12 0.40/6.4
    Nagler 4 EN4120 12 2 & 1.25 6 / 4 82   17 1.01/16.2
    Nagler 6 EN6110 11 1.25 7 / 4 82 B 12 0.42/6.7
    Nagler 6 EN6090 9 1.25 7 / 4 82 B 12 0.42/6.7
    Nagler 6 EN6070 7 1.25 7 / 4 82 B 12 0.50/8.0
    Nagler 6 EN6050 5 1.25 7 / 4 82 B 12 0.49/7.9
    Nagler 6 EN6035 3.5 1.25 7 / 4 82 B 12 0.53/8.5
    Nagler 6 EN6025 2.5 1.25 7 / 4 82 B 12 0.54/8.7


    Back to top


    Plossl Eyepieces

    Introduced in 1980, the Plossl series of eyepieces have long been considered the benchmark of performance and value for oculars in the 50 degree field-of-view range. Although they are at the lower end of the price spectrum, they receive the same care and attention as the more expensive Tele Vue oculars. By utilizing high-index glasses to reduce astigmatism and lateral color at the field's edge, these eyepieces deliver sharp image and great contrast.

    Available in 55mm, 40mm, 32mm, 25mm, 15mm, 11mm, and 8mm.

    Type Part # Focal length
    (mm)     		Barrel Size
    (in.)     		# Elements/
    #groups

    Apparent field-
    of-view (deg.)

    		 Parfocal
    Group    		 Eye-Relief
    (mm)

    Weight
    (lb/oz)
    Plossl EPL550 55 2 4 / 2 50   38 1.13/18.1
    Plossl EPL400 40 1.25 4 / 2 43   28 0.41/6.6
    Plossl EPL320 32 1.25 4 / 2 50 B 22 0.39/6.2
    Plossl EAP250 25 1.25 4 / 2 50 B 17 0.27/4.3
    Plossl EAP200 20 1.25 4 / 2 50 B 14 0.19/3.0
    Plossl EAP150 15 1.25 4 / 2 50 B 10 0.16/2.6
    Plossl EAP110 11 1.25 4 / 2 50 B 8 0.14/2.2
    Plossl EAP080 8 1.25 4 / 2 50 B 6 0.11/1.8


    Back to top


    Eyepiece Carrying Bag (ECB0010)

    Carry your eyepieces in style with this carrying bag! This soft-sided case has rigid foam inside with cutouts to hold up to 13 eyepieces of all sizes. Some cut outs are larger, enabling you to carry a variety of other accessories as well. The dense foam protects eyepieces from shock and maintains the case's rigidity. It will not flex even when loaded.

    The bag is made from an attractive gray material. Exterior dimensions are 21" x 9" x 6". Included are the carry handle and adjustable shoulder strap.

    Back to top

    Back to Products

    Copyright © 2003-2007, Astro-Physics, Inc. - All Rights Reserved
    This page was last modified: June 22, 2012

    Astro-Physics, Inc.
    11250 Forest Hills Road, Machesney Park, IL  61115, U.S.A.
    Phone: 815-282-1513   Fax: 815-282-9847