A bellows camera uses a single thin lens with its iris diaphragm mounted in contact…
PHYSICS · Multi-part · Fermi University Physics · Optics & Photonics · Geometrical optics and imaging · Geometrical optics and imaging
What an Instrument Can See, Ch Pupils: the aperture of a linear system
Problem
A bellows camera uses a single thin lens with its iris diaphragm mounted in contact with the lens, so no other aperture in the system limits the cone of light. The lens is racked out for close-up work to give a transverse magnification of magnitude ∣MT∣=0.40. At this conjugate the object-side numerical aperture, in air, is NAo=0.060.
((a)) State where the aperture stop, the entrance pupil and the exit pupil are located, and explain why they coincide here.
((b)) Find the image-side numerical aperture NAi.
((c)) Find the object-side f-number and the working (image-side) f-number of the lens at this conjugate.