It is also made up two convex lenses. The objective is however of bigger size
and greater focal length as compare to the eye-piece. The object is far away,
the incident beam of light is therefore a parallel beam; the intermediate image
R'S' is in the focal plane of the objective. This image R'S' is also allowed
to be just within the focal length distance of the eye-piece. The final image
produced RS is of much greater size than the intermediate image.