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.
The high-end Evostar-150ED Apo doublet features an undisclosed combination of one Extra-Low Dispersion (ED) glass element and a matched crown element. Each air-to-glass objective lens surface has exotic anti-reflection metallic coatings applied, to ensure optimum light throughput of approaching 99.5%. The proprietary Sky-Watcher “Metallic High-Transmission Coatings” (MHC) are the finest photon anti-rejection coatings in their class.
The Evostar-150ED is supplied without eyepiece, finderscope and star diagonal.
It is not only important which telescope you buy, but also where you buy it.
We provide extra help:
- We are a leading telescope dealer and know these instruments like the back of our hands.
- We are always very happy to offer our assistance after your purchase, should you encounter any problems with your telescope’s setup or operation.
- Our ‘Telescope Basics’ booklet - an 80-page beginner's guide for our telescopes – is provided free of charge with every telescope we sell.