18-50mm F2.8 DC DN | C Refurbished

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  • Smallest and lightest F2.8 zoom for APS-C mirrorless
  • Full-frame equivalent zoom range of 27-75mm
  • High-speed autofocus with stepping motor
  • Compatible with lens aberration correction*
  • Minimum focusing distance of 12.1cm / 4.8 in.
  • Mount with dust and splash-resistant structure
  • High-precision, durable brass bayonet mount
  • Designed to minimize flare and ghosting
  • Thermally Stable Composite (TSC) construction
  • Designed to minimize flare and ghosting


*Function available on supported cameras only. Available corrections / functionality may vary depending on camera model.


  • Best APS-C Zoom Lens, TIPA World Awards, 2022

    Best APS-C Zoom Lens, TIPA World Awards, 2022

For crop sensor mirrorless cameras

SIGMA's DC DN lenses are made exclusively for mirrorless, and are designed primarily for use with crop sensor cameras. All DC DN lenses are available for Sony E-mount, L-Mount and FUJIFILM X systems, while our 16mm, 30mm and 56mm F1.4 DC DN | Contemporary lenses are additionally available for Nikon Z, Canon EF-M, and Micro 4/3.


Lens Specifications
Lens Construction
10 groups, 13 elements
(1 SLD and 3 aspherical lenses)
Lens Construction
Angle of View
76.5°(W)- 31.7°(T)
Number of Diaphragm Blades
7 (rounded)
Maximum Aperture
Minimum Aperture
Minimum Focusing Distance
12.1 (W) - 30cm (T) / 4.8 (W) - 11.9 in. (T)
Filter Size
Maximum Magnification
1:2.8(W)- 1:5(T)
L-Mount: 290g / 10.2 oz.
Sony E: 290g / 10.2 oz.
Fujifilm X: 285g / 10.1 oz.
Dimensions (Diameter x Length)
L-Mount: 65.4 x 74.5mm / 2.6 x 2.9 in.
Sony E: 61.6 x 76.5mm / 2.4 x 3.0 in.
Fujifilm X: 61.6 x 76.8mm / 2.4 x 3.0 in.
What's in the BoxPetal type lens hood (LH582-02)
Firmware Information

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Camera Compatibility

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