Recessed front element minimizes the need for a lenshood. Inconsistently sharp—mid apertures far outperform others. Optically average; Visible barrel distortion and edge falloff to f/5.6. Maximum magnification: 1:2.
Its solid construction, aspheric elements, and UD glass suggest that if thiswere full-frame, it would rate L-series status. Performance should be perfect for those photographers who like to work in low ambient light.