The GSO SuperView eyepiece series has very impressive parameters: greenish-burgundy fully multi-coated coating and black painted lens edges are found in these optics. Their optics consist of 5 lens elements (4 for the 15 mm), meaning that the relatively small amount of glass and the fully multi-coated coating promise excellent light transmission and contrast. It's worth noting that the 42mm eyepiece achieves the widest field of view in a 2" focuser, with feedback suggesting that the image is unusually well corrected even in higher brightness telescopes!
Don't forget that compared to 3-member eyepieces, these 5-member optics image a larger and more corrected field of view! The eyepieces have a field of view of 68°-51° and an eye relief of 20 mm.
