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OPTIONAL ACCESSORIES
The following is a partial list of optional accessories that can be used with your Ultima 2000 telescope:
AC Adapter - 110V - 60Hz (#18770) - The AC Adapter allows you to run your Ultima 2000 telescope off of AC
rather than the standard DC batteries.
Accessory Case (#93500) - This rugged ABS plastic case is designed for carrying a few accessories. Inside is foam
padding that is die cut to l x l inch squares. These squares can be removed to accommodate accessories with a
custom fit.
Barlow Lenses - 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 lenses in the 1-1/4" size. 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. It works very well with all Celestron eyepieces. The latest Barlow to
be added to Celestron's product line (#93507) is a low profile achromatic design at an economical price. It weighs
just 4 oz. and it is under 3" in length.
Car Battery Adapter (#18769) - To save the internal battery, Celestron offers the Car Battery Adapter which
allows you to run the Ultima 2000 off an external 12 VDC power source. The adapter attaches to the cigarette
lighter plug of your car.
Collimated Barlow Diagonal-90º-1
1
/
4
""""
(#94117) - An ultra compact 90º barlow diagonal. It contains an integral
1.7X large aperture multi-coated achromatic Barlow lens. The diagonal is laser aligned for rotating centration. Ideal
for centering of CCD objects and critical setting circle use.
Counterweight Set (#94190)- Using this counterweight set with the standard counterpoise system that comes with
the Ultima 2000 allows you to dynamically balance the telescope with heavier accessories.
Diagonal, Erect Image (#94112-A) - For daytime terrestrial viewing the Erect Image Diagonal produces images
through your Schmidt-Cassegrain telescope that match what you see with the unaided eye. This accessory uses an
Amici prism arrangement that, in addition to producing correctly oriented images, allows you to look into the
telescope at a 45° angle, a desirable arrangement for terrestrial viewing.
Eyepiece Filters - To enhance your visual observations of planetary objects, Celestron offers a wide range of
colored filters that thread into the 1-1/4" oculars. Available are: #12 Deep Yellow, #21 Orange, #25 Red, #58
Green, #80A Light Blue, #96 Neutral Density (25% T and 13% T) and Polarizing filters. These filters are also
available in sets.
