The Black
Diamond ED80 is a modestly wide-field telescope offering bright, wide swaths of
sky in a single view. It is well suited for wide-field astronomical observation
of prominent nebulae, star clusters, and galaxies from a dark-sky location, or
can be used as an astrograph for sky photography. As a terrestrial spotting
scope or telephoto lens, the Black Diamond ED80's performance is absolutely
superb. Ultra high contrast allows the subtlest of details to be easily
scrutinized under conditions of good seeing. The petite silhouette of the Black
Diamond ED80 makes for an excellent compact, portable telescope that travels
light and fits a small space. At about 50-power structural detail becomes
apparent in our solar system's gas giants like Saturn and Jupiter. The Moon also
exhibits striking crater detail along the lunar terminator.
Schott Glass Used in Selected Models for Crown Element
Black Diamond ED80 SCHOTT benefit from the inclusion of Schott glass being
used for the positive front Crown element in the objective. Schott is the
recognized world leader in glass utilized for precision optical lens systems,
including medical instrumentation, and famous-brand camera lenses. While Schott
glass is only used in selected models, all other models utilize top-quality,
Grade-A glass from perhaps less famous but, nonetheless, highly respected,
high-quality glass manufacturers
Metallic High-Transmission Lens Coatings
Each
air-to-glass lens surface has exotic anti-reflection metallic coatings applied
to ensure optimum light through-put of approaching 99.5%. The proprietary
Sky-Watcher “Metallic High-Transmission Coatings” (MHC) are the finest photon
anti-rejection coatings in their class.
Light-Baffled Optical Systems
The objective lens cell
is light-baffled to reject stray, unfocused light. The draw tube is likewise
baffled to insure optimum contrast. The tube interior is flat blackened to help
prevent unfocused internal light reflections from reaching the focal plane.
Precision 2” Crayford Focuser is Standard
Optical
focus is achieved by means of a mechanically ultra-smooth, backlash-free,
precision 2” Crayford rack & pinion focuser-assembly. This focuser offers
fine and ultra-fine focusing adjustments.
Tube Materials
The optical tube material is rolled
steel, powder-coated reflective gloss black with gold fleck accent. The front
and back cells are cast-aluminum painted white, or black.
Telescope Tube
Attachment Hardware:
The optical tube comes with attachment hardware that
allows it to be securely fastened to any Sky-Watcher mount. The quick-release
tube rings provided with Black Diamond ED80 are cast-aluminum, painted
white.
Included Components for Selected Models*
Black Diamond ED80 is supplied with backlash-free 2”
Crayford focusers and quality foam-lined metal carrying cases as standard
equipment. Black Diamond ED80 is also supplied with 9x50mm viewfinder with
bracket; 2” diaelectric diagonal; two 1.25” LE (Long Eye Relief) eyepieces
(LE20mm and LE5mm); 1.25” focuser adaptor; and tube ring attachment hardware for
mounting to any Sky-Watcher, or other compatible mounts.
*Components included
may be different in your area. Contact your local distributor for details.
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