Sigma 85mm f/1.4 DG HSM Art Lens for Sigma SA

Sigma 85mm f/1.4 DG HSM Art Lens:

Focal Length and Aperture:

Short telephoto 85mm prime lens.

Fast f/1.4 maximum aperture for excellent low-light performance and shallow depth of field.

Optical Design:

Two SLD (Special Low Dispersion) elements.

One element with a high rate of anomalous partial dispersion and a high index of refraction.

One aspherical element.

Corrects chromatic aberrations, controls distortion, and limits vignetting.

Super Multi-Layer Coating:

Minimizes lens flare and ghosting.

Enhances contrast and color neutrality, especially in backlit conditions.

Autofocus System:

Hyper Sonic Motor (HSM) provides fast and quiet autofocus.

Optimized AF algorithm for smoother focusing performance.

Full-time manual focus control with manual override.

Diaphragm and Bokeh:

Rounded nine-blade diaphragm for attractive out-of-focus quality.

Creates smooth and pleasing bokeh.

Construction and Materials:

Thermally Stable Composite (TSC) material for durability and stability in various temperatures.

Brass bayonet mount for accuracy and durability.

Art Line in Sigma’s Global Vision Series:

Designed for creative and artistic applications.

Part of Sigma’s Art line within the Global Vision series.

Compatibility:

Designed for full-frame Sigma SA-mount cameras.

Also compatible with APS-C models, providing a 127.5mm equivalent focal length.

USB Dock Compatibility:

Compatible with the optional Sigma USB Dock for fine-tuning different lens characteristics and firmware updates.