Model: Olympus STM6Eyepiece:: 10XObjective lense : 5X / N.A. 0.1 / W.D. 20 mm10X / N.A. 0.25 / W.D. 10.6 mm20X / N.A. 0.4 / W.D. 1.3 mm50X / N.A. 0.5 / W.D. 10.6 mm100X / N.A. 0.9 / W.D. 0.21 mmLoading platform : 100 x 100 mmPrecision: 0.5 µm