What are the names of the two optical lenses of the compound microspcope that are comonly use?

The optical lenses used in compound microscopes can be
classified into two eyepiece and objective lenses. The single lens or multiple set of
lenses located the top of the lens is known as the eyepiece. The eye piece can have a
fixed or a variable magnification which is usually in the range of 5 -
30x.

The set of lenses at the bottom of the eyepiece tube
near the specimen being observed are known as the objective lenses. They come in sets
with varying magnifications that can be adjusted based on what is being observed.
Objective lenses have a magnification of 4-100x

The two
sets of lenses give compound microscopes an ability to magnify from 20x -
3000x.