Description
This is a product description of the Sigma 50mm f/1.4 DG DN Art Lens for Sony E-mount mirrorless cameras. Here are the key features mentioned:
1. **Prime standard-length lens**: The lens is a prime lens with a 50mm focal length, suitable for portraiture, landscapes, and all-purpose shooting.
2. **Designed for full-frame Sony E-mount cameras**: The lens is designed specifically for full-frame Sony E-mount mirrorless cameras, but can also be used on APS-C models, where it provides a 75mm equivalent focal length.
3. **Bright f/1.4 maximum aperture**: The lens has a bright maximum aperture of f/1.4, allowing for control over depth of field and suitable for working in low-light conditions.
4. **HLA (High-response Linear Actuator) focusing motor**: The lens features a newly designed focusing motor that provides high-speed, high-precision, and quiet autofocus performance.
5. **14 elements in 11 groups with aspherical and SLD glass elements**: The lens incorporates 14 elements in 11 groups, including three aspherical lenses and one SLD glass element, to effectively suppress various aberrations such as astigmatism and field curvature.
6. **Focus mode switch, aperture ring click switch, and aperture ring lock switch**: The lens has a focus mode switch, aperture ring click switch, and aperture ring lock switch to provide more control over the lens’s functions.
7. **AFL button**: The lens has an AFL (Auto Focus Lock) button that can be assigned to any function from the camera.
8. **Rounded 11-blade diaphragm**: The lens has a rounded 11-blade diaphragm that contributes to a smooth and pleasing bokeh quality when using selective focus techniques.
9. **Water- and oil-repellent coating**: The front lens element has been treated with a water- and oil-repellent coating to benefit working in harsh environmental conditions.
10. **Dust and splash-resistant construction with brass bayonet mount**: The lens has a dust and splash-resistant construction with a brass bayonet mount for ensured accuracy and durability.
