|Object lens||Higher power|
|Eye lens||Lower power|
|Position of the object||The object is placed at a position between fo and 2fo.|
|Nature of the image, I1||Real, inverted and magnified|
|Position of the image, I1.||The first image, I1 must be placed between the optical center of the eye lens with the eye lens principle focus point, fe.|
|Nature of the image, I2||Virtual, inverted and magnified|
|Distance in between the two lens||The distance between the object lens and the eye lens in a compound microscope is bigger than the sum of the focal length (fo + fe).
If the distance between both lenses are adjusted to less than (fo + fe), no image can be seen.
|Magnification of the compound microscope.||
m1 = Linear magnification of the object lens
m2 = Linear magnification of the object lens