• On sale!
Sky-Watcher Evostar 100ED DS-PRO OTA With Focal Reducer Corrector

Sky-Watcher Evostar 100 ED DS-PRO OTA With Focal Reducer Corrector

The new EVOSTAR DS-PRO Series ED Apochromatic refractors in their stunning Black-Diamond livery, house premium optics of the same quality and performance level as our now legendary Equinox series, making them superb instruments for both imaging and visual observations.

With Focal Reducer Corrector

VAT included
Available To Order

  • CoVid - Check For Latest Availability Using Contact Us CoVid - Check For Latest Availability Using Contact Us
  • 1-5 Day Delivery Of In-Stock Items 1-5 Day Delivery Of In-Stock Items
  • 21 Day Return Policy 21 Day Return Policy

Apochromatic Refractors, due to their unobstructed, text-book like diffraction patterns, produce the sharpest, highest quality optical imaging available, bar-none, aperture for aperture, of any telescope optical system.

These high-end telescopes all feature a doublet objective lens. One element is made from premium Japanese Ohara FPL-53 Extra-Low Dispersion (ED) glass, which virtually eliminates chromatic aberration to deliver true colour reproduction. Top quality Schott glass is utilized for the Crown element.

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.

The schott logo

  • Magnification with Eyepieces Supplied: x32 
  • Highest Practical Power (Potential): x300 
  • Objective Lens Diameter: 100mm 
  • Telescope Focal Length: 900mm (f/9) 
  • 0.85x Focal Reducer/Corrector (provides f/7.65)
  • Eyepiece Supplied (2"): 28mm LET 
  • 2”/50.8mm Di-Electric Star Diagonal 
  • 9x50 Finderscope 
  • Dual-Speed 11:1 2” Crayford Focuser (Backlash-Free) 
  • Multi-Coated Objective Lens 
  • Supplied with Tube Rings & Mounting Plate 
  • Aluminium Carrying Case

0.85x Focal Reducer/Corrector

Designed for serious Astro-Imagers. Optimised for the Evostar-100ED PRO, this superb quality accessory effectively reduces the telescope’s focal length by a factor of 0.85x and provides much improved field-edge correction. Use in conjunction with Sky-watcher’s M48 Canon or Nikon T-ring adaptors (product codes 20237 & 20238).

10203 20235

Data sheet

Optical Design
4 inch
Focal Length
900 mm
Focal Ratio
Optical Coatings
Fully Multi Coated
One Year

Specific References

Click here to leave a review