The new Sigma 100-400mm F5-6.3 DG DN OS lens for Sony E-mount will be announced on June 18 at 15:00 CEST time. This is what we know so far about this lens:
22 elements in 16 groups (including 1 FLD lens and 4 SLD lenses),
minimum shooting distance 112 cm (wide-angle end)/160 cm (telephoto end),
maximum shooting magnification 1:4.1 (at 400 mm),
filter diameter 67 mm,
size φ86×197. 2mm,
compatible with optional tripod mount.
Price $949 and 1.199€