Yepiece Paired Widefield Plano-Scope Eyepiece: WF10XorWF15X, or WF20X Objective Three Turret Styles With 1Xand 2X, or1Xand3X, or2Xand 4XObjctive Viewing Head 45degree Inclined Binocular Viewing Head, Interpupillary Adjustment From 50mm to 75mm, Dioptre On One Ocular Tube X Factors 10X-20X, 10X-30X, 15X-30X, 15X-45X, 20X-40X, 20X-60X, 30X-60X, 40X-80X