The SkyWatcher Photo-20 mm Eyepiece is a standard accessory for many telescopes. Thanks to its design without an eyecup, it can easily fit into popular smartphone holders (not included), allowing you to capture images of the Moon's craters with your telescope.
These models are characterized by a particularly favorable price and noteworthy performance. They are three-element, Kellner configuration eyepieces, with one lens element made of barium glass for improved image quality. Despite their low price, they feature anti-reflective coatings. Their field of view is approximately 50 degrees, and they are primarily recommended for use with telescopes of low focal ratio.