The Sigma 85mm F1.4 DG DN is a fast portrait prime lens for Sony E and Panasonic/Leica/Sigma's L-mount. The lens features 15 elements, including 1 aspherical and 5 SLD (special low dispersion). It has 11 aperture blades and its focus unit is driven by a high-speed stepping motor.
| Lens construction: 11 groups, 15 elements (5 SLDs and 1 aspherical lens) |
| Angle of view: 28.6-degrees |
| Number of diaphragm blades: 11 (rounded diaphragm) |
| Minimum aperture: F16 |
| Minimum focusing distance: 85cm / 33.5in. |
| Maximum magnification ratio: 1:8.4 |
| Filter size:φ77mm |
| Maximum dimensions × length: φ82.8mm×94.1mm / φ3.3×3.7in |
