Canon's AE-1 heralded a watershed in camera design, putting electronics in the hands of masses of photographers ...

At 15mm, central sharpness is outstanding at f/2.8 and f/4, excellent from f/5.6 to f/16 and very good at f/22. The edges are very good at f/2.8, excellent from f/4 to f8, very good at f/11 and f ...