According to Nokishita, the new Sigma 40mm f/1.4 DG HSM Art and 56mm f/1.4 DC DN Contemporary lenses will be released on November 22nd, 2018. The Sigma 40mm Art for Sony E mount will be released later.
Sigma 40mm F1.4 DG HSM Art
The 40mm F1.4 DG HSM Art is Sigma’s first lens developed originally to live up to the sought-after angle of view and performance standard for a benchmark cine lens. This lens effectively arranges three FLD (“F” Low Dispersion) glass elements and three SLD (Special Low Dispersion) glass elements to correct axial chromatic aberration and magnification chromatic aberration.
Designed for exceptional sharpness at maximum aperture, this lens excels at available light photography. With less than 1% distortion and near non-existent sagittal coma flare, this lens demonstrates consistent optical results featuring both 8K-compatible resolution and a beautiful bokeh. It is available for Sigma, Nikon, Canon and Sony E mount camera systems.
Full technical specifications are available here: https://www.sigmaphoto.com/40mm-f14-dg-hsm-a
Sigma 56mm F1.4 DC DN Contemporary
This lens completes the Sigma large aperture series of portable wide-angle, standard, and telephoto prime lenses in Micro Four Thirds and Sony E mounts. Featuring compact design, light weight and outstanding image quality offered in Sigma’s Contemporary line, this lens stuns with a beautiful bokeh effect and the amount of brightness expected from F1.4 lenses even in the mid-telephoto range for cropped sensor cameras. In addition, this lens is characterized by smooth and quiet autofocus ideal for video shooting. Compatible with the Sony E mount Fast Hybrid AF, it also achieves precise AF tracking. By using the face recognition or eye AF functions of the camera, focus will continuously be on the face or the eye even if the subject moves during the shoot.
Full technical specifications are available here: https://www.sigmaphoto.com/56mm-f1-4-dc-dn-c