Comfortable viewing with ease of use The versatile 20x-60x* zoom-type eyepiece with long eye relief provides sufficient angle of view for the entire zoom range. Chromatic aberrations are well corrected even at high magnifications. The peripheral flatness of sharp images is also ensured, for clear viewing throughout the zoom range.*When attached to MONARCH Fieldscope 82 series. Magnification 20 -60x Weight 12.3 oz.12.3 g