Sigma 18-50mm f/2.8 DC DN Contemporary

bythom sigma 18-50mmii

A fast zoom lens.

  • Coverage: crop sensor coverage
  • Mounts: L-mount, Sony E mount
  • Optical Design:
    • 13 elements in 10 groups
    • ? aspherical, ? SLD elements
  • no image stabilization 
  • Apertures:
    • apertures from f/2.8 to f/?; aperture ring with Automatic position
    • ?-blade aperture diaphragm
    • No Focus Distance/DOF Markings
  • Filters: 55mm front filter thread, non-rotating on focus
  • Focus:
    • 5" (0.121m) minimum focus at 18mm
    • 12" (.3m) minimum focus at 50mm
    • 1:2.8 magnification ratio at 18mm
    • 1:5 magnification ratio at 50mm
    • stepper autofocus motor 
  • Size and Weight (varies with mount; max used here):
    • 3” (76.5mm) long
    • 2.6” (65.4mm) diameter
    • 9.9 ounces (290g) weight
  • Build: Black finish
  • Other: Includes petal-shaped lens hood
  • Price: US$549
  • Announced: October 19, 2021

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