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.
Sky-Watcher SynScan mounts have been designed for use by novices and experts alike. These mounts provide extremely high precision tracking and have built in autoguider ports. This heavy-duty HEQ5 Pro mount is a smaller version of the sturdy EQ6 Pro mount. It is specially designed for observers who need the steadiness of the EQ6 Pro mount but finds the EQ6 Pro mount too physically demanding.
For novice users the user-friendly menu allows automatic slewing to 42900+ objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The SynScan Hand Control also has the ability to connect to a computer via an RS-232 cable. Once the connection has been established between the computer and SynScan Hand Control, many commercially available planetarium software programs can be used to control the HEQ5 PRO Mounts, They also come with features that advanced astronomers can appreciate.
Positioning Accuracy up to 1 arc minute.
Accuracy enhanced by software collimation error (mount mechanical error) compensation.
Stepper motors with 1.8° step angle and 64 micro steps driven.
Auto Guider Interface for astrophotography.
Object database containing complete Messier, NGC, and IC catalogs.
Minimal vibration for steady long-exposure photography.
Periodic Error Correction.
Motor Resolution: 0.144 arc sec (or 9.024,000 steps/rev.
Power Supply: 11 to 15 V DC 2Amp (Tip positive)
Gear Ratio: 705
8" Dovetail Bar
Total weight: 15kgs (without counterweights)
Mount Height: 35cm
Mount Weight (without counterweight): 10Kgs
Counterweight Shaft Material: Stainless Steel
Counterweight Shaft Length: 21.5cm
Counterweight Shaft Diameter: 1.8cm
Tripod: Stainless Steel Legs
Polar Scope included
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
Tripod Height 97-121cm
Guiding Speed from 0.25X, 0.50X, 0.75X, or 1X
Mount Type German Equatorial Mount
Counter Weight 2 x 5.1Kgs
Accessory Tray Large wall-to-wall
Motor Drive 1.8 degree stepper motors
GOTO System SynScan Hand Control
Tripod Weight 5.6 kg, 1.75" steel tripod
Shipping Weight 18+12 kg
Shipping Dimensions 127x24x25 cm3; 44x44x19 cm3
Payload Capacity 13.7 kg
Slewing Speed up to 3.4°/sec (800X)