Sigma 24-70mm f/2.8 DG DN Art Lens for Sony E

The key features of this lens are:

1. E-Mount: The lens is designed for use with Sony E-mount cameras, which means it can be mounted on Sony Alpha series mirrorless cameras.
2. Full-Frame Format: The lens is designed to work with full-frame sensors, which means it can take advantage of the full image circle and provides optimal image quality.
3. Aperture Range: The lens has a wide aperture range of f/2.8 to f/22, allowing for a good balance between shallow depth of field and maximum sharpness.
4. Lens Elements: The lens features six FLD (fluorite) elements, two SLD (special low-dispersion) elements, and three aspherical elements, which help to reduce chromatic aberration and distortion.
5. Coatings: The lens has super multi-layer and nano porous coatings to reduce flare and ghosting, and improve contrast and color accuracy.
6. Autofocus: The lens features a stepping motor autofocus system for fast and accurate focusing.
7. Weather Sealing: The lens has a dust- and splash-resistant design, making it suitable for use in harsh environments.
8. Rounded Diaphragm: The lens has a rounded 11-blade diaphragm, which helps to create a pleasing bokeh (out-of-focus area).
9. Accessories: The lens includes an LH878-03 lens hood and a padded lens case for protection and storage.

Overall, this lens appears to be a high-quality, professional-grade zoom lens designed for use with Sony E-mount cameras.