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Pentax Mount

Brands: Sigma
The Sigma 17-70mm F2.8-4 DC Macro HSM Lens is a large-aperture lens with a maximum f/stop of f/2.8 in wide angle setting. The large zoom range of this 4x...
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...