I have been told that Sigma might announce only one new E-mount lens for the summertime. Could be because of the worldwide shortage of electronic parts. That’s also why the new Sony 16-35mm FE and 24-70mm GM II will ship two-three months after their announcement.
16-28mm F2.8 DG DN | Contemporary specs
・ Lens configuration: 16 elements in 11 groups
・ Shortest shooting distance: 25cm
・ Maximum shooting magnification: 1: 5.6
・ Number of aperture blades: 9 (circular aperture)
・ Filter diameter: 72mm
・ Size : Φ77.2 x 100.6mm (E mount version is 102.6mm)
・ Weight: 450g
・ Mount: L mount ・ Sony E mount