Apochromatic refractors

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Skywatcher Evostar 72ED apochromatic refractor with 0.85x focal reducer

Kit composed by the Skywatcher Evostar 72ED doublet apochromatic refractor and the dedicated Skywatcher 0.85x focal reducer. Focal length will be lowered down to around 357 mm (F/4.96).

599,00 €

-36,00 €

635,00 €

Pack description

Kit composed by the Skywatcher Evostar 72ED doublet apochrimatic refractor and the dedicated Skywatcher 0.85x focal reducer. Focal length will be lowered down to around 357 mm (F/4.96).

Pack content

SkyWatcher Evostar 72ED F/5.8 apochromatic refractor optical tube assembly features 420 mm focal length, 2" Crayford focuser, rings, Vixen/GP dovetail.

Product Features

The Evostar 72 ED is a 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 Evostar 72 ED’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 72 ED makes for an excellent compact, highly portable telescope that travels light and fits in 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.

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 OpticalSystems

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” Dual Speed Crayford Focuser is 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.

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

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 Evostar 72 ED Hardware cast-aluminium, painted white.

Included Components for Selected Models*

Evostar 72 ED is supplied with 2” Dual Speed Crayford Focusers and quality foam-lined aluminium carrying cases as standard equipment. 

Specifications

Optical Design

ED Apochromatic Refractor 

Optical Diameter

72 mm

Focal Length

420 mm

F/Ratio

F/5.8

Focuser Diameter

2" dual speed, crayford 

Tube Weight

1.9 Kg with rings and dovetail included

SkyWatcher 0.85x reducer / corrector for Evostar 72ED. Focal reducer designed to improve Evostar 72 ED refractor performance. This field flattener features M48 thread.