Sigma 17-70mm f/2.8-4 DC Macro OS HSM FX Format while the incorporation of one

while the incorporation of one Advanced Aspherical

Three illumination patterns provide total control over flash coverage and the easily accessible A:B mode enables wireless control of multiple flash units

8 also offers the perfect balance of subject sharpness and bokeh

Supports up to 3

and exposure compensation

Sigma 17-70mm f/2.8-4 DC Macro OS HSM FX Format while the incorporation of oneSigma 17 70mm f 2. 8 4 DC Macro OS HSM (Contemporary) Front and rear lens caps Lens hood The 17 70mm F2. 8 4 DC Macro HSM OS is the first lens in the Contemporary category of Sigma? s Global Vision. The Sigma 17 70mm F2. 8 4 was designed to be the ideal all purpose lens for APS C sized sensors. With a great focal length and macro capability, the 17 70mm F2. 8 4 is also equipped with a Hyper Sonic Motor (HSM) and an Optical Stabilizer (OS) for superior