Pentax HD DA 21mm F3.2 AL Limited

Wide field of view. Compact. Excellent build quality. Fairly even illumination.

Not that sharp at f/3.2. Some barrel distortion.

Conclusions The Pentax Limited series puts an emphasis on build quality and size, and for the most part, limits the maximum aperture of lenses in order to capture a tack sharp photo at every setting. The HD DA 21mm F3.2 AL Limited is the exception, as...