You can easily calculate the magnification of the microscopic image by multiplying the power of the eyepiece lens by the power of the objective lens in use. For example, if the eyepiece is 10x and the objective lens you are using is 40x, the image is magnified 400 times (10 x 40 = 400). For each objective on your microscope, calculate what the total magnification of a specimen would be when viewed under that objective. Fill in the table below Calculating Total Compound Microscope Magnification Magnification Name of Objective Objective Ocular (Eyepiece) Total Scanning 10 X Low power 10 X High power 10 X Oil Immersion 10 X