Authorized Dealers
Welcome
About Tele Vue
Product List/Pics
Eyepieces
Telescopes
Filters
Mounts & Accessories
Sky Tour
Observing Accessories
Photo / Imaging
Photo / Imaging Pics
Help / Tutorials
Reviews
Owners Speak
Birding
Vixen America

© Tele Vue Optics, Inc.
 
printer friendly
Tele Vue Eyepiece Specifications 
Prod.
Code		 1FL
(mm)		 Eyepiece
Type		 Barrel
(in.)		 2E / G 3AF 4G 5ER
(mm)		 Field
Stop
(mm)		 6Eyepiece Dimensions (in.) Weight
(lb / oz)		 Recommended
A B C D E F Bino Vue DIOPTRX
Digiscoping
 EPL-55.0 55 Plössl 2" 4 / 2 50  38 46 3  1.4 2.3  1.16 1.13 / 18.1   Y
 EPL-40.0 40 Plössl 1¼" 4 / 2 43  28 27 1.8 0.9  1.6  0.7 0.41 / 6.6 Y Y
 EPL-32.0 32 Plössl 1¼" 4 / 2 50 B 22 27 1.9 0.9  1.6  0.25 0.39 / 6.2 Y Y
 EAP-25.0 25 Plössl 1¼" 4 / 2 50 B 17 21.2 1.6 0.9  1.3  0.25 0.27 / 4.3 Y 
 EAP-20.0 20 Plössl 1¼" 4 / 2 50 B 14 17.1 1.2 0.9  1.3  0.25 0.19 / 3.0 Y 
 EAP-15.0 15 Plössl 1¼" 4 / 2 50 B 10 12.6 0.9 0.9  1.3  0.25 0.16 / 2.6 Y 
 EAP-11.0 11 Plössl 1¼" 4 / 2 50 B 8 9.1 0.5 0.9  1.4  0.25 0.14 / 2.2 Y 
 EAP-08.0 8 Plössl 1¼" 4 / 2 50 B 6 6.5 0.4 0.9  1.4  0.25 0.11 / 1.8 Y 
 ERD-18.0 18 Radian 1¼" 6 / 4 60 B 20 18.3 1.4 1.4  1.8  0.25 0.49 / 7.8 Y Y
 ERD-14.0 14 Radian 1¼" 6 / 4 60 B 20 14.4 1.6 1.4  1.8  0.25 0.54 / 8.7 Y Y
 ERD-12.0 12 Radian 1¼" 6 / 4 60 B 20 12.6 1.8 1.1  1.8  0.25 0.53 / 8.5 Y Y
 ERD-10.0 10 Radian 1¼" 6 / 4 60 B 20 10.5 1.9 1.2  1.8  0.25 0.54 / 8.7 Y Y
 ERD-08.0 8 Radian 1¼" 6 / 4 60 B 20 8.3 2.2 1.2  1.8  0.25 0.60 / 9.6 Y Y
 ERD-06.0 6 Radian 1¼" 7 / 5 60 B 20 6.3 2.5 1.3  1.8  0.25 0.79 / 12.6 Y Y
 ERD-05.0 5 Radian 1¼" 7 / 5 60 B 20 5.3 2.6 1.2  1.8  0.25 0.80 / 12.8 Y Y
 ERD-04.0 4 Radian 1¼" 7 / 5 60 B 20 4.2 2.6 1  1.8  0.25 0.76 / 12.1 Y Y
 ERD-03.0 3 Radian 1¼" 7 / 5 60 B 20 3.3 2.7 1.1  1.8  0.25 0.77 / 12.3 Y Y
 EPO-41.0 41 Panoptic 2" 6 / 4 68 A 27 46 3.8  1.1 3  0.27 2.10 / 33.6   Y
 EPO-35.0 35 Panoptic 2" 6 / 4 68 C 24 38.7 3.4  1.2 2.6  0.17 1.60 / 25.6   Y
 EPO-27.0 27 Panoptic 2" 6 / 4 68 A 19 30.5 2.4  1.2 2.1  0.29 1.03 / 16.4   Y
 EPO-24.0 24 Panoptic 1¼" 6 / 4 68 B 15 27 2.1 0.8  1.9  0.25 0.51 / 8.2 Y 
 EPO-19.0 19 Panoptic 1¼" 6 / 4 68 B 13 21.3 1.7 0.9  1.7  0.25 0.41 / 6.6 Y 
 EN5-31.0 31 Nagler 5 2" 6 / 4 82  19 42 3.9  1.5 3.3  -0.38 2.20 / 35.2   Y
 EN5-26.0 26 Nagler 5 2" 6 / 4 82  16 35 3  1.5 2.8  -0.05 1.60 / 25.6   Y
 EN4-22.0 22 Nagler 4 2" 7 / 5 82  19 31.1 2.4  1.5 2.4  -0.29 1.50 / 24.0   Y
 EN5-20.0 20 Nagler 5 2" 6 / 4 82 C 12 27.4 2.1  1.3 2.1  0.15 1.04 / 16.6   
 EN4-17.0 17 Nagler 4 2" 7 / 5 82  17 24.3 2.6  1.5 2.4  -0.03 1.60 / 25.6   Y
 EN5-16.0 16 Nagler 5 1¼" 6 / 4 82 B 10 22.1 1.5 1.2  1.7  0.28 0.44 / 7.1 Y 
 EN6-13.0 13 Nagler 6 1¼" 7 / 4 82 B 12 17.6 1.6 1.3  1.6  0.25 0.40 / 6.4 Y 
 EN4-12.0 12 Nagler 4 2" & 1¼" 6 / 4 82  17 17.1 2.3 1.8 1 2.4 1.2 0.78 1.01 / 16.2   Y
 EN6-11.0 11 Nagler 6 1¼" 7 / 4 82 B 12 14.9 1.7 1.2  1.6  0.25 0.42 / 6.7 Y 
 EN6-09.0 9 Nagler 6 1¼" 7 / 4 82 B 12 12.4 1.9 1.2  1.6  0.25 0.42 / 6.7 Y 
 EN6-07.0 7 Nagler 6 1¼" 7 / 4 82 B 12 9.7 2.2 1.2  1.6  0.25 0.50 / 8.0 Y 
 EN6-05.0 5 Nagler 6 1¼" 7 / 4 82 B 12 7 2.1 1.2  1.6  0.25 0.49 / 7.9 Y 
 EN6-03.5 3.5 Nagler 6 1¼" 7 / 4 82 B 12 4.8 2.2 1.2  1.6  0.25 0.53 / 8.5 Y 
 EN6-02.5 2.5 Nagler 6 1¼" 7 / 4 82 B 12 3.4 2.3 1.2  1.6  0.25 0.54 / 8.7 Y 
 ETH-21.0 21 Ethos 2"  /  100  15 36.2 4.3  1.62 2.95  -0.38 2.25 / 36.0   Y
 ETH-17.0 17 Ethos 2"  /  100  15 29.6 4.5  1.4 2.4  -0.39 1.55 / 24.8   Y
 ETH-13.0 13 Ethos 2" & 1¼"  /  100  15 22.3 4 1.6 1.1 2.5 1.1 0.27 1.30 / 20.8 Y Y
 ETH-10.0 10 Ethos 2" & 1¼"  /  100  15 17.7 3.8 1.6 1.1 2.3 1.1 0.27 1.10 / 17.6 Y Y
 ETH-08.0 8 Ethos 2" & 1¼"  /  100  15 13.9 3.3 1.7 0.94 2.1 1.2 0.7 0.95 / 15.2 Y Y
 ETH-06.0 6 Ethos 2" & 1¼"  /  100  15 10.4 3.5 1.5 0.94 2.1 1.1 0.7 0.97 / 15.5 Y Y
 ETH-03.7 3.7 Ethos 2" & 1¼"  /  110  15 7.04 5 1.1  2.2  0.25 1.10 / 17.6   
 ENZ-0204 4-2 Nagler Zoom 1¼" 5 / 3 50 B 10 3.3-1.7 0.9 1.6  1.7  0.25 0.36 / 5.7 Y 
 ENZ-0306 6-3 Nagler Zoom 1¼" 5 / 3 50 B 10 5.1-2.6 0.7 1.6  1.7  0.25 0.33 / 5.3 Y 
Prod.
Code		 1FL
(mm)		 Eyepiece
Type		 Barrel
(in.)		 2E / G 3AF 4G 5ER
(mm)		 Field
Stop
(mm)		 6Eyepiece Dimensions (in.) Weight
(lb / oz)		 Recommended
A B C D E F Bino Vue DIOPTRX
Digiscoping

  Table Footnotes

1FL: Focal Length

2E / G: # Lens Elements / # Groups

3AF: Apparent Field of View

4G: Parfocal Group, eyepieces with the same letter are approximately parfocal -- require little (if any) refocusing when used together.

5ER: Eye Relief

6Eyepiece Dimensions: see diagram right
  A. Height of barrel above reference surface
B. Height of 1¼" barrel
C. Height of 2" barrel
D. Diameter of black barrel
E. Depth of 1¼" barrel
F. Approx. location of field stop (negative number is above reference surface)

  Table Eyepiece Notes

  • All Tele Vue eyepieces listed have full multi-coatings, blackened lens edges, high index glasses, fold-down eyeguards, and filter threads. They are all based on patented designs by Al Nagler and are individually tested to be diffraction-limited on-axis.
    All Nagler and Radian eyepieces have internal focal planes. Field stop diameters and locations are "effective". Radian and Nagler type-4 eyepieces have "Instajust Eyeguards," and "pupil guide" accessory.
  • The 55mm Plössl and 41mm Panoptic eyepieces have an adjustable height (removable) eyeguard.
  • Also available: 2X and 3X parfocal 1-1/4" Barlows; parfocal 2.5x and 5x 1-1/4" Powermates; 2X Big Barlow, 2x and 4x Powermates for 2" focusers. Use Paracorr (1.15X) to correct fast parabolic "Dob/Newts", dramatically sharpens field to take full advantage of Tele Vue eyepiece capabilities.
  • All dual barrel eyepieces work equally well in 1-1/4" or 2" focusers.

  Discontinued Eyepiece Archive

Prod.
Code		Eyepiece Field
Stop
(mm)
ENA-04.84.8 Nagler6.6
ENA-07.07 Nagler9.4
ENA-09.09 Nagler12.3
ENA-11.011 Nagler14.9
ENA-13.013 Nagler17.8
EN2-12.012 Nagler 216.4
EN2-16.016 Nagler 221.9
EN2-20.020 Nagler 227.4
EWF-15.015 Wide Field15.4
EWF-19.019 Wide Field19.6
EWF-24.024 Wide Field24.7
EWF-32.032 Wide Field33
EWF-40.040 Wide Field41.2
EPO-15.015 Panoptic17.1
EPO-22.022 Panoptic25
EPL-07.47.4 Plössl6.2
EPL-10.510.5 Plössl8.7
EPL-13.013 Plössl10.8
EPL-17.017 Plössl14.3
EPL-21.021 Plössl18
EPL-26.026 Plössl22.1
For your convenience this table lists discontinued eyepiece field stops.

See this section on our new website.
Best Viewed at
 1024x768

Print Page
For information call between 9 a.m. and 5 p.m. ET Monday through Friday:  845 469 4551
Copyright © 2003-2010 Tele Vue Optics, Inc., 32 Elkay Dr., Chester, NY 10918. All rights reserved.