Observing with Black Diamond 120 ED
The additional aperture of this telescope provides a dramatic increase in resolution and a heightened sense of seeing lunar and planetary surface phenomenon in seemingly 3D-like high-definition. Tight globular star clusters like M13 in Constellation Hercules appear like a beehive of crisp stellar pinpoints, star upon thousands of stars deep into the objects core. In Deep-space, rich aggregates of stars within Galaxies, Nebulas, and open clusters appear brilliant contrasted against a very dark velvet black background. The wispy, delicate, featherlike structure of dust lanes and extension of glowing gasses can be seen reaching out far beyond the object’s core.
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 ensure optimum contrast. The tube interior is flat blackened to help prevent unfocused internal light reflections from reaching the focal plane.
Precision 2” Dual Speed Crayford Focuser as Standard
Optical focus is achieved by means of a mechanically ultra-smooth, backlash-free, precision 2” Dual Speed Crayford Focuser-assembly. This focuser offers 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, 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 ED120 SCHOTT are cast aluminum, painted white.
Included Components for Selected Models
Black Diamond 120 ED SCHOTT is supplied with backlash-free 2” Dual Speed Crayford Focusers and quality foam-lined Aluminum carrying cases as standard equipment.
The EQ5 provides the precision and stability needed for serious observing. With single or double axis motor drive attached, it becomes the perfect instrument for deep-sky photography. Standard features of the EQ5 include a built-in holder for polar scope, a latitude adjuster with micrometer scale, an azimuth polar-alignment adjuster, aluminum setting circles, large manual slow-motion tracking controls, and a bubble level.
Optical Design ED Apochromatic Refractor
Optical Diameter 120mm
Focal Length 900mm
Highest Practical Power 240x
Faintest Steller Magnitude 13.1
Finder Scope 8X50
Focuser Diameter 2" dual speed, crayford
Diagnol 2" 90 deg. Dielectric Diagonal with 1.25" adapter
Eyepieces LET 2"-28
Tube Weight 5.13kg
Tube Dimensions 10 cm x 62cm
Shipping Weight 18 kg
Shipping Dimensions 120x45x46 cm3
Mount Type German equatorial
Slow Motion Control Yes
Counter Weight 2x 5.1kg
Accessory Tray Large wall-to-wall
Motor Drive Single axis with hand controller
Shipping Weight 25 kgs
Shipping Dimensions 106x49x26 cm3
Payload Capacity 9.10 kg