AE31E, Diopter adjustment On both eyepieces, +/- 5 diopter Eyepieces Widefield WF10X/22mm with diopter adjustment Nosepiece Left side facing quintuple
BA410E, Objectives 4X/0.10 (WD 15.9mm), 10X/0.25 (WD 17.4mm), 40X/0.65/S (WD 0.5mm), 100X/1.25/S-Oil (WD 0.15mm)