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You will find that additional accessories enhance your viewing pleasure and expand the usefulness of your
telescope. For ease of reference, all the accessories are listed in alphabetical order.
Adapter AC (#18773) - Allow DC (battery powered) telescopes to be converted for use with 120 volt AC power.
Barlow Lens - A Barlow lens is a negative lens that increases the focal length of a telescope. Used with any eyepiece, it
doubles the magnification of that eyepiece. Celestron offers two Barlow lens in the 1-1/4" size for the CGE. The 2x Ultima
Barlow (#93506) is a compact triplet design that is fully multicoated for maximum light transmission and parfocal when
used with the Ultima eyepieces. Model #93326 is a compact achromatic Barlow lens that is under three inches long and
weighs only 4 oz. It works very well with all Celestron eyepieces.
CD-ROM (#93700) - Celestron and Software Bisque have joined together to
present this comprehensive CD-ROM called The Sky™ Level 1 - from Celestron. It
features a 10,000 object database, 75 color images, horizontal projection, custom sky
chart printing, zoom capability and more! A fun, useful and educational product.
PC format.
Erect Image Diagonal (#94112-A) - This accessory is an Amici prism arrangement
that allows you to look into the telescope at a 45° angle with images that are oriented
properly (upright and correct from left-to-right). It is useful for daytime, terrestrial
viewing.
Eyepieces - Like telescopes, eyepieces come in a variety of designs. Each design has its own advantages and
disadvantages. For the 1-1/4" barrel diameter there are four different eyepiece designs available.
• OMNI Plössl - Plössl eyepieces have a 4-element lens designed for low-to-high power observing. The Plössls offer
razor sharp views across the entire field, even at the edges! In the 1-1/4" barrel diameter, they are available in the
following focal lengths: 4mm, 6mm, 9mm, 12.5mm, 15mm, 20mm, 25mm, 32mm and
40mm.
• X-Cel - This 6 element design allows each X-Cel Eyepiece to have 20mm of eye relief, 55°
field of view and more than 25mm of lens aperture (even with the 2.3mm). In order to
maintain razor sharp, color corrected images across its 50° field of view, extra-low
dispersion glass is used for the most highly curved optical elements. The excellent refractive
properties of these high grade optical elements, make the X-Cel line especially well suited
for high magnification planetary viewing where sharp, color-free views are most
appreciated. X-Cel eyepiece come in the following focal lengths: 2.3mm, 5mm, 8mm,
10mm, 12.5mm, 18mm, 21mm, 25mm.
• Ultima -
Ultima is our 5-element, wider field eyepiece design. In the 1-1/4" barrel
diameter, they are available in the following focal lengths: 5mm, 7.5mm, 12.5mm, 18mm,
30mm, 35mm, and 42mm. These eyepieces are all parfocal. The 35mm Ultima gives the
widest possible field of view with a 1-1/4" diagonal
.
• Axiom – As an extension of the Ultima line, a new wide angle series is offered – called the Axiom series. All units are
seven element designs and feature a 70º extra wide field of view ( except the 50mm). All are fully multicoated and
contain all the feature of the Ultimas.