At 14mm, central sharpness is very good at f/4, excellent at f/5.6 and f/8 and very good from f/11 to f/22. The edges are good at f/4, very good from f/5.6 to f/11, good at f/16 and fair at f/22.

This allows the focus ring to travel further, and the lens to extend another 14mm, in order to focus ... Both at f/8 in aperture priority on a Canon 300D. Used in Macro mode, this lens shines ...