Sigma 28-70mm f/2.8 DG DN Contemporary Lens for Sony E

The Sigma 28-70mm f/2.8 DG DN Contemporary Lens for Sony E-Mount is a highly adaptable zoom lens that spans from wide-angle to portrait lengths, distinguished by its constant maximum aperture of f/2.8. This design is particularly advantageous for shooting in available light, providing enhanced control over depth of field. Compared to similar 24-70mm lenses, it is more compact and lightweight. Its optical configuration includes two FLD and two SLD low-dispersion elements, along with three aspherical elements, all of which work together to minimize various aberrations, resulting in exceptional sharpness, clarity, and color fidelity. The lens employs a single lightweight focusing element, which contributes to a compact autofocus unit. Coupled with a fast and quiet stepping motor, this design ensures responsive and nearly silent autofocus performance, making it an excellent choice for filmmakers seeking a high-quality, lightweight camera system that integrates seamlessly with gimbals and other accessories.

Each optical surface is treated with Super Multi-Layer and Nano Porous coatings, enhancing contrast and color reproduction by minimizing lens flare and ghosting, thus optimizing light transmission. Additionally, a water- and oil-repellent coating on the front element helps maintain a clean lens surface, free from smudges and droplets. The weather-sealed construction is advantageous for use in challenging environmental conditions, while a nine-blade rounded diaphragm produces aesthetically pleasing bokeh when shooting at wider apertures.

• Standard zoom for full-frame E-mount mirrorless cameras
  
  
• 42-105mm equivalent focal length when used on an APS-C camera
  
  
• Constant f/2.8 maximum aperture for Low light use and depth-of-field control
  
  
• Two F Low Dispersion (FLD) and two Special Low Dispersion (SLD) elements reduce chromatic aberrations and color fringing
  
  
• Three aspherical elements control spherical aberrations and distortion
  
  
• Both Super Multi-Layer and Nano Porous coatings minimize lens flare and ghosting and produce contrast-rich and color-neutral imagery
  
  
• Integrated stepping motor and optimized AF algorithm provides quick and quiet autofocus
  
  
• 28mm minimum focus distance: 7.5", 1:3.3 magnification
  
  
• 70mm minimum focus distance: 15", 1:4.6 magnification
  
  
• Rounded nine-blade diaphragm for a pleasing bokeh quality
  
  
• Brass bayonet for mounting accuracy and rigidity
  
  
• Rubber sealing for dust- and splash-resistance