Sigma directly leaked some details about the new 24mm F3.5 DG DN lens. The page has now been removed but here are the screenshots:
UPDATE: Some more info:
The L mount version of the new Sigma lens has a 24mm lens configuration of 10 elements in 8 groups (including 1 SLD glass and 3 aspherical lenses), a minimum shooting distance of 10.8cm, a maximum shooting magnification of 1: 2, a filter diameter of 55mm, and a size of φ64×48. .8mm, 549 USD. 35mm is 10 elements in 9 groups (1 SLD, 3 aspherical surfaces), minimum 27cm, maximum 1: 5.66, filter 58mm, φ70×67.4mm, 325g, $ 639.
65mm lens configuration 12 elements in 9 groups (including 1 SLD glass and 2 aspherical lenses), minimum shooting distance 55cm, maximum shooting magnification 1: 6.81, filter diameter 62mm, size φ72×74.7mm, weight 405g, $ 699 It seems to be. #rumor