28–105mm · f/3.2–4.5
The Kiron 28-105mm f/3.2-4.5 is a manual-focus zoom from a company founded by ex-Nikon engineers, known for high optical quality. It is sharp wide open at both ends, with good contrast, excellent shadow detail, and low fringing. Distortion and vignetting are absent on APS-C, and bokeh fringing is subdued. Build is solid but the focus has a long throw due to full-time macro; one-touch zoom can be tricky on DSLRs. It suits photographers comfortable with manual focus who prioritize image quality over autofocus convenience.