Please contact us if you have any question. We will work with you to solve any problems. Thank you! Achromatic Objectives 4X,10X,40X(S),100X(S,Oil) Eyepiece Wide Field Eyepiece: WF10X(WF16X optional) Viewing head Dual Observation Head, One Tube 30o Inclined And Another Tube Vertical ,360o Rotatable Stage Double Layer Mechanical Stage Size 125X115mm Focusing Coaxial Coarse and Fine Adjustment, Focusing Range 30mm, Focusing Interval 0.002mm Condenser Abbe NA=1.25 with lris Diaphragm&Filter IIIumination LED lamp