... 16X and 25X three magnification (standard configuration) and 6X, 10X, 16X, 25X and 40X ... (professional configuration); there is no need to change the ... are supported· It can provide with 0.5mm, 3.5mm, 8mm and 14mm (max) apertures; it ... 25×,40×(professional configuration)Range of pupil distance55mm~78mmField of view 40× (Ø5.5mm), 25× (Ø8.5mm), 16× (Ø13.5mm), 10×(Ø22mm), ...