Sigma 28-70mm f/2.8 DG DN Contemporary

bythom sigma 28-70

A compact mid-range zoom lens.

  • Coverage: full frame coverage
  • Mounts: L-mount, Sony FE mount
  • Angle of View: 34 to 75° (diagonal)
  • Optical Design:
    • 16 elements in 12 groups
    • 3 aspherical, 2 SLD, 2 FLD elements
    • Nano Porous, front element repellent coating
  • no image stabilization 
  • Apertures:
    • apertures from f/2.8 to f/22
    • no aperture ring
    • 9-blade aperture diaphragm
    • No Focus Distance/DOF Markings
  • Filters: 67mm front filter thread, non-rotating on focus
  • Focus:
    • 8" (0.19m) minimum focus at 28mm
    • 15" (0.38m) minimum focus at 70mm
    • 1:3.3 magnification ratio at 28mm
    • 1:4.6 magnification ratio at 70mm
    • autofocus motor (stepping)
    • internal focus
  • Size and Weight:
    • 4" (101.5mm) long
    • 2.8" (72.2mm) diameter
    • 16.6 ounces (470g) weight
  • Build: Black finish, dust- and splash-proof "structure"
  • Other: Includes petal-shaped lens hood
  • Price: US$899
  • Announced: February 24, 2021

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