One of the major benefits of apochromatic refractor designs with ED (extra low dispersion) glass is virtually the complete absense of chromatic aberration in which all colors do not focus the same way. This is a significant benefit of the Sky-Watcher Evostar 120 and better yet, it is reasonably priced without breaking the bank! It is an excellent choice for deep sky and planetary observation due to its f/7.5 focal ratio and superior optics including but not limited to the ED glass as well as Sky-Watcher's Metallic High-Transmission Coatings to remove any false color. The internal baffle also removes any stray light so any photons hitting the camera sensor are not unwanted or stray light.

The doublet apochromatic design of the Sky Watcher Evostar 120 ED makes it more lightweight due to less optical components and glass. This results in only needing a less expensive mount with a lower payload.

• The ED glass component of the Sky-Watcher Evostar 120 virtually removes all chromatic aberration ensuring all colors refract as equally as possible to remove unwanted false color.
• Excellent choice for both deep sky and planetary observation due to its fast f/7.5 which is generally a good range for lower power wide field observing.
• Metallic High-Transmission Coatings on top of the ED glass remove any false color.
• Stray light is removed to ensure astrophotography exposures are clean, a major plus for long exposures.
• Lightweight design reducing demand for a mount with higher payload.
• The Sky-Watcher Evostar 120 ED Apochromatic Refractor comes with tube rings, a Vixen style dovetail, 5mm and 25mm eyepieces, 8x50 finderscope, 2" dielectric diagonal and a foam lined aluminum case.