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Pentax Mount

Brands: Sigma
The Sigma 10-20mm f/3.5 EX DC HSM Autofocus Zoom is a super-wide angle lens with a maximum aperture of f3.5 throughout the entire zoom range ensuring high...
Brands: Sigma
The Sigma 15mm f/2.8 EX DG Diagonal Fisheye is a full-frame fisheye auto focus lens that fills the entire 35mm negative with a full 180 degree diagonal field...
Brands: Sigma
Sigma's new 17-50mm F2.8 EX DC HSM large-aperture standard zoom lens covers a focal length from 17mm wide angle and offers a large aperture of F2.8...
Brands: Sigma
The Sigma 35mm f/1.4 DG HSM Lensis the first entry into Sigma's Art series of professional lenses, with an emphasis on artistic expression and the creative...