Station 1
( 5 minutes allowed )
Given a lens of  +3.00 / -1.00 X 90 with a diameter of 60mm and a point 
object at a distance of 1m in front of the lens, calculate the following:

a. the location of the line foci.

b. the location of the circle of least confusion.

c. the diameter of the circle of least confusion.

ANSWERS
              Click here for station 2
Click here to return to mock examination 4