"The Barska 40x, 100x and 400x Compound Monocular Microscope delivers impressive detail and clarity with a 10x wide field eyepiece and 4x, 10x and 40x objective lenses. A 5 watt light with adjustable brightness allows the user to set the brightness setting while viewing a specimen. This Barska Compound Microscope features fine and coarse focus adjustments, slide retention clips and a rotating nosepiece with three objective lenses. The 40x, 100x and 400x Compound Monocular Microscope is ideal for hobbyists, industrial use and medical applications.The Barska line of High Powered Compound Microscopes feature powerful magnification ranges that allow users to get an up-close look at microscopic details. Each compound microscope uses a revolving nosepiece (turret) to adjust the magnification on the specimen. These high-quality Barska Microscopes are very user friendly and are ideal for a wide range of applications, from educational uses to medical and lab applications.|360deg. Rotating Head / 45deg. Viewing|4x, 10x, 40x Objectives|10x Wide Field Eyepiece|40x, 100x, 400x Magnification|Fine / Coarse Focusing"