66 Degree Ultra Wide Angle Eyepiece: Provide impressive optics with an enormously wide 66 degree apparent field of view (AFOV); Perfect for clearly observing planets or deep sky objects and offering expansive views of moon star clusters and Milky Way
Comfortable Eye Relief & Adjustable Eyecup: Generous 14.8mm eye relief with 6mm focal length allows comfortable viewing distance during astronomical; fold-down rubber eyecup design more fit the glasses wearer that prevent stray light entering when using
Advanced 5-Element HD Optics: Precision-engineered with muti-coating optical system are characterized by highly effective coatings and high light transmission, which delivers sharper and clearer observed images with better color correction and contrast
Fully Multi-coated: Astromania 17mm Super Plossl eyepiece is engineered with 2 sets of 5 element design with fully multi-coated; the high-quality optics that minimize internal reflections and improve contrast
52 Degree Field Of View: The eyepiece have a wider 52 degree field of view than most eyepieces with a 17mm focal length and 13mm eye relief to see more detail; You can choose eyepiece with the right focal length for your telescope model which are parfocal