C1 the first condenser lens, is shown highlighted in the
diagram.
Its function is to:
- Create a demagnified image of the gun crossover.
- Control the minimum spot size obtainable in the rest
of the condenser system.
If
C1 has a focal length f, and the gun crossover is 10f from
the lens, where is the demagnified image of the crossover
and what is the demagnification?
