Apochromatic refractors

Manufacturers

Filtra articoli

Categoria

Show allHide

Prezzo

Solo prodotti in offerta

Info

Shopping

New products

Offers

SkyWatcher Evostar 100 / 900 ED refractor optical tube

SkyWatcher

SW-SKBKED100

Nuovo

SkyWatcher Evostar 100 / 900 ED refractor optical tube features F/9 focal ratio, 2" Crayford focuser, 2" diagonal with 1.25" adapter, eyepiece and finder scope.

Maggiori dettagli

1 135,87 €

-3%

1 171,00 €

Ordered upon request

Follow the price

Keep track of the price drops on this item. Simply enter your email here and we will send you an email alert.

Invalid email

Watch it

Product Features

Observing with Black Diamond 100 ED

Fortunate indeed is the amateur astronomer with a Black Diamond 100 ED refractor on a clear night with transparent skies and a stable atmosphere. Turning the telescope to the Crescent Moon, the Apennine Mountains snap into razor-sharp focus revealing a cornucopia of jagged mountain ridges, canyons, and numerous small craters in ultra high definition. Not far removed, reaching skyward, the crater wall of Archimedes pops into view in bold relief against the smooth flatlands that transverse the distance between it and the Apennine Mountains. This is lunar observing at its best – HD style. The gas giant Jupiter displays its swirling equatorial bands in high-definition with festoons and tonality within the bands. The great spot is clearly visible, discreetly contrasted from the surrounding Jovian landscape. Prominent deep-space nebula yield improved definition in gaseous outer extensions. Stars in globular clusters resolve to pinpoints. This is just the beginning of an incredible journey of exploration possible with a Black Diamond 100 ED.

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 optimum contrast. The tube interior is flat blackened to help prevent unfocused internal light reflections from reaching the focal plane.insure

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.

Tube Materials

The optical tube material is rolled steel, powder-coated reflective gloss black with gold fleck accent. The front and back cells are -aluminium painted white, or black. cast

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 100 EDarecast-aluminium, painted white

Included Components for Selected Models*

Black Diamond 100 ED is supplied with backlash-free 2” Dual Speed Crayford Focusers and quality foam-lined Aluminium carrying cases as standard equipment.

Specifications

Optical Design

ED Apochromatic Refractor 

Optical Diameter

100mm 

Focal Length

900mm 

F/Ratio

F/9 

Highest Practical Power

200x 

Faintest Steller Magnitude

12.7 

Finder Scope

8X50 

Focuser Diameter

2" dual speed, crayford 

Diagnol

2" 90 deg. Dielectric Diagonal with 1.25 inch adapter 

Eyepieces

LET 2"-28 

Tube Weight

3Kgs 

Tube Dimensions

10 cm x 92cm 

Shipping Weight

15 kg 

Shipping Dimensions

105x39x30cm3 

Customer ratings and reviews

Nobody has posted a review yet

30 other products in the same category: