Make sure this fits by entering your model number. Quality Optics: 400mm(f/5.7) focal length and 70mm aperture, fully coated optics glass lens with high transmission coatings creates stunning images and protect your eyes. Perfect telescope for astronomers to explore stars and moon. Magnification: Come with two replaceable eyepieces and one 3x Barlow lens.3x Barlow lens trebles the magnifying power of each eyepiece. 5×24 finder scope with mounting bracket and cross-hair lines inside make locating objects easily.