Sigma 40mm f/1.4 Art DG HSM Lens for Sony E Mount

Engineered to meet the stringent standards of a cine lens, the Sony E-mount Sigma 40mm f/1.4 DG HSM Art Lens is a wide normal-length lens distinguished by its luminous design and advanced optical configuration. The rapid f/1.4 maximum aperture facilitates the creation of shallow depth of field and selective focus effects, making it particularly effective in challenging lighting environments. The optical architecture includes a combination of low dispersion and aspherical elements, which enhance sharpness and clarity by mitigating both spherical and chromatic aberrations. Additionally, a Super Multi-Layer Coating is applied to reduce flare and ghosting, thereby improving contrast and color fidelity in bright lighting situations.

In terms of functionality, the lens is equipped with a Hyper Sonic Motor that ensures fast, smooth, and silent autofocus operation, along with the option for full-time manual focus override. The physical construction features a brass bayonet mount, providing durability and precise mounting, complemented by a seal that protects against dust and moisture. Furthermore, a rounded nine-blade diaphragm enhances the aesthetic quality of the bokeh.

• As part of the Art line within Sigma's Global Vision series, this lens is designed to achieve truly notable optical performance and is ideally suited for creative and artistic applications.
  
  
• Short-normal prime is designed for full-frame Sony E-mount mirrorless cameras, however is also suitable for APS-C models where it provides a 60mm equivalent focal length.
  
  
• Impressively bright f/1.4 maximum aperture is well-suited for working in low-light conditions and also provides greater control over the focus position when using shallow depth of field techniques.
  
  
• Three F Low Dispersion (FLD) and three Special Low Dispersion (SLD) elements are featured in the optical design, and help to reduce color fringing and chromatic aberrations for improved clarity and color accuracy.
  
  
• One aspherical element is used to help limit distortion and spherical aberrations and also contributes to greater overall sharpness and accurate rendering.
  
  
• A Super Multi-Layer Coating has been applied to lens elements in order to minimize lens flare and ghosting and contribute to producing contrast-rich and color-neutral imagery, even in backlit conditions.
  
  
• Rounded nine-blade diaphragm contributes to a smooth and pleasing bokeh quality.
  
  
• The integrated HSM (Hyper Sonic Motor) realizes quick and quiet autofocusing, which is further complemented by an optimized AF algorithm to produce smoother focusing performance. The HSM also permits full-time manual focus control simply by rotating the focus ring at any time.
  
  
• Specialized electromagnetic aperture mechanism provides greater exposure control stability that is especially beneficial when working with fast continuous shooting rates.
  
  
• The bayonet mount is constructed from brass for ensured accuracy and durability. Additionally, rubber sealing is incorporated in the mount design to render it dust- and splash-resistant.
  
  
• Protective coating has been applied to the front element and is both water and oil-repellent to aid in cleaning.