In a compound microscope, the image formed by the objective lens is usually very near the focal point of the eyepiece lens The angular magnification relates the angular size of an object at some location to the angular size of the image formed by a lens at the same location. ...
Morphological changes of the compound eyes during F−0 instar in Aeshnidae and Libellulidae larvae. (A–X) Dorsal views of the heads. All scale bars show 2 mm. Species and family names are provided on the left side. The number shown on the lower left of each image indicates the numbe...