OPTIONAL ACCESSORIES
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.
Advanced GT German Equatorial Mount (#91518)
– Turn your 80EDF
telescope into a wide field photographic instrument or high power planetary
telescope, with the addition of this computerized EQ mount. This new
German Equatorial mount has precision worm gears on both axes for
extremely smooth stability. The key element that makes this system the
most stable in its class is the re-designed heavy-duty tripod with larger and
more substantial legs that offer excellent damping characteristics for more
stable views.
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 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. The X-Cel ED Barlow (#93327) is a compact Barlow
lens that uses ED glass and is under three inches long and weighs only 4 oz.
It works very well with all Celestron eyepieces.
Diagonal 2" Mirror (#93526)
- Celestron offers a 2" 90° 1/10
λ
Mirror
Diagonal that slides into the barrel of a 2" focuser. This diagonal includes an adapter to accept 1¼"
eyepieces. It has a Starbright XLT
®
multicoated mirror and smooth mechanics that are precision
manufactured for reliability
Diagonal, Erect Image - 45° -1-1/4" (#94112-A) -
Celestron’s Erect Image Diagonals are an Amici prism
design. This design allows you to look into the telescope at a 45° angle, at images that are oriented
properly, meaning the image is upright and correct from left to right.
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 55° 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.
T-Adapter – (#93642)
-A T-Adapter allows you to attach your 35mm SLR camera to
