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SIGMA

SIGMA 18-50mm F2.8 DC DN Contemporary Sony E 55mm

SKU CH-NS5X-3E223

Compact 18-50 mm F2.8 zoom for Sony E-mount APS-C cameras, 27-75 mm equivalent range, 12.1 cm close focus, 55 mm filter thread, 290 g

  • Part type or number585965
  • Diameter2.5 in (6.35 cm)
  • Focus systemAuto Focus
  • Lens focal length18 To 50 mm
  • Lens aperture2.8 mm
  • Lens mountSony e
  • Compact wide-to-portrait zoom covers 27-75 mm full-frame equivalent
  • Bright constant f/2.8 aperture enables low-light and shallow-depth-of-field shooting
  • Fast quiet stepping-motor autofocus suits video and moving subjects
  • 1:2.8 macro capability with 12.1 cm minimum focus distance
  • Lightweight 290 g design ideal as first or secondary lens

Versatile APS-C zoom for Sony E-mount

The Sigma 18-50mm F2.8 DC DN Contemporary covers a 27-75mm full-frame equivalent range on Sony E-mount APS-C bodies. Its constant F2.8 aperture supports low-light hand-held work and shallow depth of field. Weighing 290 grams, it suits photographers and videographers wanting a single lens for landscapes, portraits, street, architecture and events. It is not for shooters who need longer telephoto reach or full-frame image circles.

Bundled cap and hood protect the front element

The supplied cap and hood (type: Cap & Hood, colour: Black, diameter: 55 mm) shield the filter thread from flare, impact and dust during daily use. The hood also reduces stray light that can lower contrast in backlit scenes. No additional pouches, cases or software licences are included in the package. Buyers who want a dedicated carrying case or circular polariser must source them separately.

Compact barrel with 55 mm filter thread

The lens measures 5.5 x 4.0 x 4.2 inches and uses a stepping motor for fast, quiet autofocus suitable for video and moving subjects. Minimum focus distance is 12.1 cm with 1:2.8 maximum magnification for close-up work. The 55 mm thread accepts common screw-in filters without vignetting. The Sony E mount ensures native communication with APS-C bodies; full-frame users must engage APS-C crop mode. Build uses polycarbonate construction to keep weight under 300 grams.

How it compares

Measured against everything we stock in Interchangeable Camera Lenses, at today’s prices. Recalculated every night.

Price $407.99
Cheaper than about 65% of the 2,570 comparable items (median $546.49).

Specifications

Product
Brand nameSIGMA
Model name585965
Part number585965
Part type or number585965
Product typeCap & Hood
Product colorBlack
Audio & video
Focus systemAuto Focus
Lens focal length18 To 50 mm
Lens aperture2.8 mm
Lens mountSony e
Viewing angle51.3 degrees
Auto-focusAuto Focus
Size & build
Diameter2.5 in (6.35 cm)
Filter thread size55 mm
Product dimensions5.5 in × 4.0 in × 4.2 in
Product weight290 g
Compatibility
Compatible withSony E

Questions about this item

Will the 55 mm filter thread or the plastic hood need periodic replacement?

The 55 mm filter thread is part of the metal lens barrel and does not wear out. The supplied plastic hood clips on securely and only needs replacing if it is physically damaged.

What optical limit appears first when shooting continuously at F2.8?

At the constant F2.8 aperture the lens reaches its diffraction-limited resolution before any thermal focus shift becomes noticeable during extended shooting sessions.

How much heat does the stepping motor generate during all-day video recording?

The stepping motor draws very little current, so the barrel stays close to ambient temperature even after hours of continuous autofocus operation.

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