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.
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- 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
