TeleVue Plossl 40.0mm eyepieces EPL-40 have won praise and patents,

including
a patent in Japan.
Tele Vue Plössl 40.0 eyepieces, designed by Al Nagler, have been a recognized
benchmark of performance and value in the class of 50 degree apparent field of view
eyepieces. While the
TeleVue Plössl 40 eyepieces may be
Tele Vue
least expensive
eyepiece line, they still
enjoy the same care and attention to detail as our most expensive.
Diffraction limited "on-axis" performance is a given. Using more expensive high-index
glasses to reduce
astigmatism and lateral color at the field's edge,
Tele Vue Plossl eyepieces
deliver unusual sharp images. The faster the focal ratio of your
telescope, the greater your visual reward
for using
Tele Vue eyepieces.
TeleVue Plössl eyepieces feature full
multicoatings for greatest
light transmission and contrast. Blackened lens edges and internal
anti-reflection
threads tweak the last bit of
contrast for maximum image detail. The sharper field
focuses faint star light into perceptible points and allows those with undriven
mounts to gaze longer before repositioning the image.
In the
1-1/4" series TeleVue included a long eye-relief
TeleVue 40 mm focal eyepiece
length in the series
with a 43 degree apparent field. Like the
55mm, its focal plane is at the barrel
edge for maximum field in the 1-1/4" format.
Specifications for Tele Vue Plossl EPL 40.0 eyepieces EPL40: |
| Focal Length (mm): |  | 40 |
 |
| Apparent Field of View: |  | 43° |
 |
| # of Elem.: |  | 4 |
 |
| Barrel Dia.: |  | 1 1/4" |
 |
| Eye-relief (mm): |  | 28 |
 |
| Weight (lb / oz): |  | 0.41 / 6.6 |
 |
| Field Stop dia. (mm): |  | 27.0 |
 |
| Works in Bino Vue: |  | Y |
 |
Package Contents:- Tele Vue Plossl EPL 40.0 eyepieces