Our Mitcham Warehouse will be closed from Friday (23.10.2020) to Monday (26.10.2020) for the Grand Final Day Public Holiday (VIC). All orders placed after 12pm on Thursday will be shipped out on Monday. Thank you for your understanding and see you soon! -OpticsCentral Team

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Skywatcher Black Diamond ED100/900 Doublet Refractor Telescope - OTA Only with CASE


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Exceptional clarity, beautiful contruction and a dream to use, the Skywatcher Black Diamond ED 100mm Refractor OTA will take you from the high contrast edges of the moon craters, to the soft gaseous surfaces of Jupiter, through to pin-point clarity of the faintest stars of deep space - all against a rich black sky.

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Regular Price: $1,699.00

Special Price $1,549.00

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The Skywatcher Black Diamond ED 100mm Refractor OTA is one of the most beautiful refractor telescopes available. Featuring a low-maintenance fully-sealed optical tube equipped with the best quality optics available, night sky viewing and astrophotography will be nothing short of an absolute pleasure. Immerse yourself in the sharpness and clarity of the moon craters, be awed by the gaseous bands of Jupiter and the Red Spot on the Surface, gaze at pin-point sharpness of the stars and clusters. Grab a camera - you are going to need it. 

Designed with a two-element air-spaced objective, the second of which is constructed from FPL-S3 - the highest grade of Extra-low Dispersion (ED) fluorite glass available, the Skywatcher Black Diamond ED 100mm Refractor OTA produces an unrivalled picture quality. Featuring a 100mm aperture for excellent light collection and lenses fully coated with proprietary Sky-Watcher anti-reflection Metallic High-Transmission Coatings, the Black Diamond series allows impressive light through-put approaching 99.5%. Light- Baffled Optical Systems ensures that all only focussed light is accepted by the telescope, with all unfocussed light being rejected. The inner tube is painted flat black on the inside to prevent reflections.

Featuring a precision 2” Crayford Focuser allowing the use of 2" eyepieces for a wider field of view with ultra-smooth focusing makes the Skywatcher Black Diamond ED 100mm Refractor OTA a dream to use. A 28mm 2" eyepiece is included to get you started. Standard 1.25" eyepieces are also compatible. 

Constructed from sturdy rolled steel with cast-aluminium aperture and eyepiece cells makes the Skywatcher Black Diamond ED 100mm Refractor OTA highly durable. Quick release mounting rings are included, allowing the optical tube to be attached to any Skywatcher mount. 

Optically exceptional and designed for astronomy amateurs and professionals alike, the Skywatcher Black Diamond ED 100mm Refractor OTA is one telescope that will never cease to delight. This telescope is highly suitable for astrophotography. 

Your Skywatcher Black Diamond ED 100mm Refractor OTA is warranted to be free of defects in materials and workmanship for one year after the date of purchase. In the event of a defect under this warranty, we will, at our option, repair or replace the product, provided that you return the product with proof of local purchase such as a receipt. 

About Sky-Watcher
Contemporary telescope-making has advanced the simple optical designs early scopes to revolutionary, state of the art. The Sky-Watcher company believes Telescopes of quality make should no longer be expensive, but accessible to everyone. Sky-Watcher philosophy has always been to bring the vast wonders of the skies within reasonable reach of anyone with enough curiosity and courage to look up and imagine. Sky-Watcher scopes come in a large range of observational applications - from 10"Dobsonians to spotting scopes for land use.  


  • High Definition ED 100mm Refractor Optical Tube
  • Precision 2” Crayford Focuser
  • 2" 28mm eyepiece included
  • Metallic High-Transmission Coatings with Light-Baffled Optical Systems
  • Finderscope and Mounting rings included
  • 2 Year Australian Warranty

Product Code: SKW-BDED100-OTA

Additional Information

Additional Information

Optical Design No
Compatibility No
Focal Length No
Exit Pupil No
Eye Relief No
Field of View (Apparent) No
Number of Elements No
Shipping Dimensions No
Shipping Weight No
Warranty Information No
Additional Specifications of Product Aperture: 100mm Focal length: 900mm f/9 Highest magnification: 200x Finderscope: 8x50 Right Angle Eyepieces: 2" 28mm
Loupe Colour No


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