Conclusions The Pentax HD D FA 28-105mm F3.5-5.6ED DC WR is a pretty standard example of a starter zoom lens. It delivers strong sharpness throughout most of the frame, but sacrifices edge performance and distortion control in order to achieve a 3.75x zoom range in such a compact package.
Strong center sharpness; Compact; Weather-sealed design; Inexpensive; Full-frame coverage
Some distortion; Weak edge performance; Dim corners