Home > Astronomical Telescopes > Skywatcher > Pro Series Refractors
Model: 10203-20235Brand: SkywatcherDesign: RefractorSize: 4" (102mm)
Delivery: Courier Delivery
Generally In Stock, Please Confirm Before Ordering
100mm (4”) f/900 Fluorite ED Apochromatic Refractor
*** SAVE OVER £200 WITH THIS FANTASTIC KIT! ***
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.
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 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.
Magnification with Eyepieces Supplied: x32Highest Practical Power (Potential): x300Objective Lens Diameter: 100mmTelescope Focal Length: 900mm (f/9)0.85x Focal Reducer/Corrector (provides f/7.65)Eyepiece Supplied (2"): 28mm LET2”/50.8mm Di-Electric Star Diagonal9x50 FinderscopeDual-Speed 11:1 2” Crayford Focuser (Backlash-Free)Multi-Coated Objective LensSupplied with Tube Rings & Mounting PlateAluminium Carrying Case
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Rother Valley Optics
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Rother Valley Optics Ltd is registered in England and Wales 04762707. Registered Office: 21 Station Road, Kiveton Park, Rotherham, S26 6QP. Rother Valley Optics Ltd acts as a credit broker only. Rother Valley Optics Ltd are authorised and regulated by the Financial Conducts Authority. Credit provided subject to age and status..
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