Sigma has just officially announced the new Sigma 20mm F1.4 DG DN Art lens for Sony E and Leica L mounts. It offers incredible imaging performance from corner to corner, with a large maximum aperture that makes it ideal for use in low-light environments, particularly under dark skies where its new features are especially useful. Always an excellent choice for landscape and architecture, this lens is equipped with newly updated functions especially useful for astrophotographers.
This new lens costs $899, first available for pre-order at B&H/ Adorama.
| Principal specifications | ||
|---|---|---|
| Lens type | Prime lens | |
| Focal length | 20 mm | |
| Lens mount | L-Mount, Sony E pre-order at B&H/ Adorama | |
| Aperture | ||
| Maximum aperture | F1.4 | |
| Minimum aperture | F16 | |
| Aperture ring | Yes | |
| Number of diaphragm blades | 11 | |
| Aperture notes | Rounded | |
| Optics | ||
| Elements | 17 | |
| Groups | 15 | |
| Special elements / coatings | Two Super-Low Dispersion elements, three aspherical elements, Super Multi-Layer coating, and water- and oil-resistant coating. | |
| Focus | ||
| Minimum focus | 0.23 m (9.06″) | |
| Autofocus | Yes | |
| Motor type | Stepper motor | |
| Full time manual | Yes | |
| Focus method | Internal | |
| Distance scale | No | |
| DoF scale | No | |
| Physical | ||
| Weight | 635 g (1.40 lb) | |
| Diameter | 88 mm (3.46″) | |
| Length | 111 mm (4.38″) | |
| Materials | Aluminum, Thermally Stable Composite (TSC) | |
| Sealing | Yes | |
| Colour | Black | |
| Filter thread | 82 mm | |
| Filter notes | Rear filter holder + front thread | |
| Hood supplied | Yes | |
| Hood product code | LH898-04 | |
| Tripod collar | No | |
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