Image and specifications of the upcoming Sigma 20mm f/1.4 DG HSM lens for full-frame cameras have leaked at Digicame Info. Announcement is expected for Friday, October 16.

• Full-frame DSLR
• Lens construction: 15 sheets group 11
• Large-diameter aspherical lens
• Two FLD lens, adopted five SLD lens
• Correction of magnification chromatic aberration to the limit
• AF motor HSM. Adopted a new full-time manual mechanism
• Total length: 129.8mm
• Maximum diameter: 90.7mm
• Weight: 950g
• The diaphragm blades: 9 sheets and (circular aperture)
• Maximum magnification of 1: 7.1
• Thorough the flare and ghost measures
• Design distortion is very small
• The consideration of the sagittal coma flare
• Mounts for Canon, Nikon, Sigma
• Suggested retail price of ¥ 162,000 (approx. $1,300, but real US price will likely be lower)