3. (1pt.) What is the total magnification of the following? 4. (0.5pt.) What is the function of the iris diaphragm? 5. (0.5pt.) What is the function of the field diaphragm?
3. (1pt.) What is the total magnification of the following? 4. (0.5pt.) What is the function of the iris diaphragm? 5. (0.5pt.) What is the function of the field diaphragm?