NATIONAL 420 Series Stereomicroscopes
Grade 9-College. Experience the convenience and versatility of continuous zoom magnification from 10x to 40x with the 420 Series. The erect 3-D image is not reversed and remains in focus throughout the zoom range. Illumination is provided by a halogen top light with a directional beam and a cool, long-life fluorescent bottom light. Choose from a binocular head and a trinocular head that accepts video or SLR camera adapters (included).