The SV48P 102mm f/6.5 Astronomical Telescope has outstanding optics, high-quality mechanical components. Fitted with achromatic glass for good edge-to-edge viewing, fully multi green coated lens maximize light transmission eliminating false color. The 2.5inch Double speed focuser, for smooth operation, great feel and precise adjustability. This is a good telescope provides for astrophotography visual observers or nature watchers. SV135 7-214mm zoom eyepiece is a good assistant for you to observe and take pictures of the planets. More comfortable to view the moon, Jupiter and Saturn. 36°-52° field of view. This is a zoom eyepiece considering that it zooms from 7mm to 21mm. which allows you to see different wide field of view under the same viewing conditions. Meet your different needs. Provide comfortable observation experience. 13-14mm wide eye relief can also provide an easy and pleasant viewing experience. It is also friendly to people wearing glasses. 1.25'' diagonal fits telescopes with 1.25in focusers accepts standard 1.25” eyepieces, filters, Barlow lenses and other accessories with a 1.25in insert barrel. 90° Viewing Angle. For more comfortable overhead viewing through refractor and Cassegrain type telescopes. Dielectric coatings; super flat mirror with dielectric coatings to reduce reflected light loss; provide an over 99% reflective surface; good for astronomical viewing.