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These are Celestron’s top-of-the-line eyepieces. As an extension of
the popular Ultima line, the Axiom’s offer a wider field of view in
both 1.25” and 2” barrel sizes. All Axiom oculars feature a
7-element design, to give you tack sharp star images across its
extra wide, 70° apparent field of view*. All are fully multicoated
with extra large pop-up eyecups to block unwanted stray light. Like
the Ultima series, the Axiom optical design minimizes the following
aberrations: spherical, color, field curvature, coma, astigmatism,
distortion and spherical distortion of the exit pupil. The edges of
the optical elements are blackened to minimize internal reflections
and increase contrast.
1-1/4” threaded barrels accept 1-1/4” Celestron filters.

*The 50mm has a 50° apparent field of view.

The E-Lux series of eyepieces is available in 1 1/4” and 2” models.
This is a highly economical traditional Plössl optical design
series.

If you are looking to move up to a higher quality eyepiece the Omni
series provides more enhanced features in a wider selection of focal
lengths. Celestron designed this series with the finer points in mind
so you, the user, can benefit from the features that make this series
unique. The Omni is a 4 -element premium symmetrical Plössl optical
design. Features include blackened lens edges to minimize internal
reflection and maximize contrast, multi-layer coating group on each
lens surface to maximize light transmission and contrast, and each
Omni goes through a two-step anodizing process to prevent reflection
from the top eyepiece barrel, unlike most other manufactures who use
reflective surfaces. Threaded barrels accept 1-1/4” Celestron
thread-in filters.

Rated as best in their class by Sky and Telescope magazine, the
Ultima eyepieces use a 5-element hybrid optical design. They feature
long eye relief and a wide field, and each air-to-glass surface is
fully multicoated to enhance contrast levels. These special
eyepieces are computer designed to keep visual aberrations to an
absolute minimum. They virtually eliminate the following
aberrations: spherical, color, field curvature, coma, astigmatism,
distortion and spherical distortion of the exit pupil. The inside
surfaces and edges of all lenses are blackened, to keep out
reflected light. Outside surfaces are flat black, with rubber grips
for secure handling. Rubber eyecups are included both for
comfortable use and to keep out extraneous light. Threaded barrels
accept Celestron 1-1/4” thread-in filters. Lens and barrel caps are
included for safe storage.

If you are looking for an eyepiece that excels for planetary viewing,
then Celestron’s X-Cel offers the unique features you are looking
for. A 6-element fully multi-coated optical design, the X-Cel
utilizes extra low dispersion (ED) glass on its most highly curved
surfaces, to minimize chromatic aberration that can hinder sharp
planetary views. With a wide 55° apparent field of view, and a large
25mm clear aperture the X-Cel is one of the most comfortable
eyepieces to use. Every X-Cel eyepiece is parfocal with each other,
meaning little or no focusing is needed when changing from low to
high power. The X-Cel comes with soft rubber eyecups and a durable
plastic case. In addition, if you are an eyeglass wearer, you will
enjoy the 20mm eye relief available on each of the X-Cel focal
lengths. Threaded barrels accept 1 -1/4” Celestron thread-in
filters.

In the construction of solar filters and associated instrumentation,
Coronado takes enormous care to optimize contrast by minimizing the
number of components and designing them so that they do not result
in creating residual reflections and spurious light near the image.
Until recently, the only component not included in this overall
approach was the eyepiece. Now the new CEMAX (Contrast Enhanced)
series eyepiece fills this need. Specifically designed for use at
H-Alpha and multi coated on every surface (including cemented
surfaces), the CEMAX eyepieces are the ultimate in contrast
enhancement for the solar observer.

ncludes: Series 4000 SP 6.4mm, 9.7mm, 12.4mm, 15mm, 32mm, and 40mm
eyepieces, #126 2x Barlow Lens, Series 4000 Color Filter Set # 1
(#12 Yellow, #23 Light Red, #58 Green, #80A Blue), Series 4000 ND96
Moon Filter, and Aluminum Carrying Case.

The smc Zoom eyepiece features a magnification range of 20-60X, an
apparent field of view of 38 to 60 degrees, and an eye relief of
20mm. Like all PENTAX eyepieces, it is renowned for its outstanding
image reproduction. With its JIS Class 6 rated waterproof and fog
proof construction, this Zoom eyepiece is ideal for use with
astronomical telescopes.

PENTAX Corporation is pleased to announce the introduction of the smc
PENTAX XW series of eyepieces designed for use with PENTAX-brand
spotting scopes and telescopes in ground and astronomical
observations. Consisting of eight models with a focal length ranging
from 3.5mm to 40mm, the new XW series features a wide apparent angle
of view (70 degrees), JIS Class 4 weather-proof construction and a
long eye relief (20mm). The new optics, incorporating
high-refraction, low-dispersion lanthanum glass elements and
PENTAX-original multi-layer coating, delivers bright,
high-resolution images with minimal aberrations and distortions.

The Tack-Sharp, Long Eye-Relief 68 degree Field Eyepiece

With the Panoptic series, Tele Vue has taken the Wide-Field concept
to Nagler-like performance levels - A meaningful advance over any
eyepiece in its 68 degree field class.