Sigma 18-125mm f/3.8-5.6 Lens for Pentax
Sigma 18-125mm f/3.8-5.6 Lens for Pentax - Pentax Mount, Zoom Lens, for Digital SLR, Focus: Autofocus, Max Aperture: f/3.8-f/5.6, 16 Elements in 12 Groups, Filter size: 67 mm, The Sigma 18-125mm F3.8-5.6 DC HSM (Pentax) is a compact high zoom range. OS function is not available in Pentax mount.