Tag: Aspherical
Sigma 10-20mm f/3.5 EX DC HSM ELD SLD Aspherical Super Wide Angle Lens for Pentax Digital SLR Cameras
Sigma Corporation is pleased to announce the new Sigma 10-20mm F3. 5 EX DC HSM. This super-wide angle lens has a maximum aperture of F3. 5 throughout the entire