The M280 combines affordability with functionality. All the features of higher priced models in a slimmed down frame, all at a very economical price. The led-illuminated M280 is a great choice for routine scope work: wet preps, urines, smears and differential Counts.. Achromatic 4X/10X/40X/100X(oil) objective. Integrated mechanical stage. Abbe Na1.25 condenser. Led illuminator. . UNICO M280 10X Wide field Eyepiece Mechanical Stage Binocular Microscope, Achromatic 4X/10X/40X/100X(Oil) Objective, NA 1.25 Condenser, Iris Diaphragm, LED Illumination, Coaxial Focusing. M280. Country of Origin : United States.