[填空题]
The normal lens on a 35-mm camera has a focal ox.w.z5 xev vga s(gj11r(: b:7gxvro 3xmt jt p493malength of 50.0 $mm$. Its aperture diameter varies from a maximum of 25 $mm$ $(f/2)$ to a minimum of 3.0 mm $(f/16)$. Determine the resolution limit set by diffraction for $f/2$ and $f/16$. Specify as the number of lines per millimeter resolved on the film. Take $\lambda=550\mathrm{~nm.}$
For $\frac{f}{2}$ we have $\frac{1}{RP_2}$ = lines/mm
For $\frac{f}{16}$ we have $\frac{1}{RP_2}$ = lines/mm
