Sky-Watcher Black Diamond EVOSTAR ED80 OTA
An ED Apochromatic Refractor
Well designed for wide-field astronomical observation of prominent nebulae, star clusters, and galaxies.
Come with focal ratio f/7.5, it can be used as an astrograph for sky photography or telephoto lens.
The Ultra high contrast allows the subtlest of details to be easily scrutinized under conditions of good seeing.
supplied with 2” Dual Speed Crayford Focusers and quality foam-lined aluminium carrying case
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The Sky-Watcher 80/600 Black Diamond ED Doublet Refractor OTA is a refractor telescope that well designed for wide-field astronomical observation of prominent nebulae, star clusters, and galaxies from a dark-sky location. Come with focal ratio f/7.5, it can be used as an astrograph for sky photography or telephoto lens. The Ultra high contrast of this Sky-Watcher ED Refractor allows the subtlest of details to be easily scrutinized under conditions of good seeing.
Metallic High-Transmission Lens Coatings (MHC)
Each air-to-glass lens surface has been coated by Sky-Watcher’s proprietary MHC. An anti-reflection metallic coatings which ensure optimum light-transmission approaching 99.5%.
Light-Baffled Optical Systems
The objective lens cell of this 80/600 Black Diamond ED Doublet OTA is light-baffled to reduce stray & unfocused light to insure optimum contrast. The interior of the tube is flat blackened to prevent unfocused internal light reflections from reaching the focal plane.
Precision 2” Crayford Focuser
This precision 2″ Crayford Focuser is mechanically ultra-smooth and backlash-free, offers you a fine and ultra-fine focusing adjustments.
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 & 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.
In the Box:
- ED80 OTA
- 2″ Diagonal
- 1.25″ Focuser Adaptor
- 8×50 Finderscope with Bracket
- Eyepiece – LET 28mm
- Tube Ring Attachment to Any Sky-Watcher Mount
- Piggyback Bracket
|Optical Design||ED Apochromatic Refractor|
|Highest Practical Power||160x|
|Finder Scope||8X50 straight through|
|Focuser Diameter||2″ dual speed, crayford|
|Diagonal||2″ 90 deg. Dielectric Diagonal with 1.25″ adapter|
|Tube Dimensions||10 cm x 62cm|
|Shipping Weight||8 kg|
|Shipping Dimensions||68 x 33 x 23 cm|