Officially announced: New Sigma 17mm f/4, 50mm f/2 and 23mm f/1.4 E-mount lenses!

Preorders:
17mm lens at BHphoto, Amazon, Adorama, FotoErhardt, FotoKoch, WexUK.
23mm lens at BHphoto, Amazon, Adorama, FotoErhardt, FotoKoch, WexUK.
50mm lens at BHphoto, Amazon, Adorama, FotoErhardt, FotoKoch, WexUK.

News and Reviews:
Press text at Explora. 17mm test at SonyAlphaBlog. 23mm test at SonyAlphaBlog. 50mm test at SonyAlphaBlog. 17mm lens review at Lensvid.

Youtube reviews:

 

Follow the live stream for the triple Sigma E-mount lens announcement!

Here are the lens specs:

17mm F4 DG DN | Contemporary (Full Frame)

  • Lens construction: 9 elements in 8 groups
  • Shortest shooting distance: 12cm
  • Maximum magnification: 1:3.6
  • Filter diameter: 55mm
  • Size: φ64.0mm x 48.8mm (50.8mm for E mount version)
  • Weight: 225g (220g for E-mount version)
  • Magnetic metal cap

50mm F2 DG DN | Contemporary (Full Frame)

  • Lens construction: 11 elements in 9 groups
  • Shortest shooting distance: 45cm
  • Maximum magnification: 1:6.9
  • Filter diameter: 58mm
  • Size: φ70.0 x 68.0mm (70.0mm for E mount version)
  • Weight: 350g (345g for E-mount version)
  • Compatible with magnetic metal caps

23mm F1.4 DC DN | Contemporary (APS-C)

  • Lens construction: 13 elements in 10 groups
  • Shortest shooting distance: 25cm
  • Maximum magnification: 1:7.3
  • Filter diameter: 52mm
  • Size: φ65.8 x 76.9mm
  • Weight: 340g
  • Mount: L mount, Sony E mount, Fujifilm X mount