Product Name: Monocular Biological Student Microscope with LED Light Medical Instrument Model NO.: B104 Principle of Optics: Finity Optical System Principle: Optics Usage: Teaching, Research Shape: Cylindrical Shaped Lens Kind of Light Source: Ordinary Light Stereoscopic Effect: Without Stereoscopic Effect Mobility: Desktop Number of Cylinder: Monocular Type: Biological Magnification: >1000X Nosepiece: Quadplex Condenser: Abbe N.a.1.25(Iris Diaphragm) base: 6V20W Achromatic Objective: 4X/10X/40X(S)/100X/1.25(Oil)(S) Monocular Head: Inclined 30degree.Rotatable 360degree Focusing Knobs: Coaxial Coarse and Fine Focusing Knobs Trademark: Optec Transport Package: Carton Specification: 337x242x417(mm) Origin: Chongqing HS Code: 9011100000 Product Description B series Biological MicroscopeBiological microscope is widely used to observe biological slices, biological cells, bacteria and living tissue culture, fluid precipitation observation and research, while observing other transparent or translucent objects and powder, fine particles and other objects. Total magnifications Objective Total MagnificationsEyepiece 4X10x40X100x10X40x100X400x1000X16X64X160x640X1600XObjectives ObjectiveNumericalAperture(N.A.)Objective FieldResolvingPowerWorking DistanceObjectiveFieldNumberф18FieldNumberф20AchromaticPlan4X0.104.5mm5mm2.8µm13mm16mm10X0.251.8mm2mm1.1µm6.3mm2mm40X (S)0.650.45mm0.5mm0.42µm0.44mm0.66mm100X(Oil) (S)1.250.18mm0.2mm0.22µm0.3mm0.42mm