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Sigma 18-50mm F2.8 DC DN Contemporary

Leica L-Mount Autofocus

Sigma 18-50mm F2.8 DC DN Contemporary

Focal length
18–50 mm
Aperture
f/2.8
Weight
290 g
Filter diameter
55 mm
Min. focus distance
12.1 cm
Length
74.5 mm
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At a Glance

This standard zoom for L-Mount APS-C cameras is compact at 290 g and weather sealed. It spans 27-75 mm equivalent with the aperture fixed at f/2.8. At 12.1 cm focus distance it reaches 0.36x magnification. Everyday shooting, travel and events suit it well.

Good for

  • Everyday
  • Travel
  • Events

Worth knowing

  • APS-C image circle: on full-frame cameras only usable in crop mode, at reduced resolution.

Derived from the manufacturer data, not from our own tests. How we check

Technical Specifications

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Min. focal length
18 mm
Max. focal length
50 mm
Max. aperture (min. zoom)
f/2.8
Max. aperture (max. zoom)
f/2.8
Min. aperture
f/22
Elements
13
Groups
10
Weight
290 g (0.64 lb)
Filter diameter
55 mm
Min. focus distance
12.1 cm at 18 mm · 30 cm at 50 mm
Max. magnification
1:2.8 at 18 mm · 1:5 at 50 mm
Length
74.5 mm (2.93 in)
Diameter
65.4 mm (2.57 in)
Announced
October 2021

Manufacturer data: sigma-global.com, sigma-global.com

Last checked: October 13, 2026 (against the manufacturer data) · How we check

Simulate depth of field and angle of view

Compare with other lenses

Which cameras does the Sigma 18-50mm F2.8 DC DN Contemporary fit?

The Sigma 18-50mm F2.8 DC DN Contemporary is designed for APS-C sensors. On APS-C L-Mount cameras its field of view equals 27-75 mm in full-frame terms. Full-frame bodies use it in APS-C (crop) mode, recording only part of the sensor and fewer megapixels.

L-Mount cameras

Full frame (in APS-C mode):
Leica SL3-P,Leica SL3-S,Sigma BF,Panasonic Lumix S1II,Panasonic Lumix S1IIE,Panasonic Lumix S1RII,Leica SL3,Panasonic Lumix S9,Blackmagic PYXIS 6K,Panasonic Lumix S5II,Panasonic Lumix S5IIX,Blackmagic Cinema Camera 6K,Panasonic Lumix BS1H,Leica SL2-S,Panasonic Lumix S5,Sigma fp L,Leica SL2,Panasonic Lumix S1,Panasonic Lumix S1R,Panasonic Lumix S1H,Sigma fp,Leica SL (Typ 601)
APS-C:
Leica CL,Leica TL2,Leica TL,Leica T (Typ 701)

Sigma 18-50mm F2.8 DC DN Contemporary compared

Key specs side by side with the most similar L-Mount lenses.

LensSigma 18-50mm F2.8 DC DN ContemporaryLeica Vario-Elmar-T 18-56mm f/3.5-5.6Sigma 17-40mm F1.8 DC ArtSigma 20-60mm F2.8-4 DG Contemporary
Focal length18-50 mm18-56 mm17-40 mm20-60 mm
Max. aperturef/2.8f/3.5-5.6f/1.8f/2.8-4
Weight290 g256 g535 g385 g
Filter diameter55 mm52 mm67 mm67 mm
Min. focus distance12.1 cm30 cm28 cm15.8 cm
Length74.5 mm60 mm115.9 mm86 mm
Autofocusyesyesyesyes
Image stabilizationnononono
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Sigma 18-50mm F2.8 DC DN Contemporary: FAQ

Does the Sigma 18-50mm F2.8 DC DN Contemporary have autofocus?

Yes, the Sigma 18-50mm F2.8 DC DN Contemporary has autofocus.

Does the Sigma 18-50mm F2.8 DC DN Contemporary have image stabilization?

No, the Sigma 18-50mm F2.8 DC DN Contemporary has no stabilization of its own. On cameras with in-body image stabilization (IBIS) the image is still stabilized.

How much does the Sigma 18-50mm F2.8 DC DN Contemporary weigh?

The Sigma 18-50mm F2.8 DC DN Contemporary weighs 290 g. It is 74.5 mm long with a diameter of 65.4 mm.

What filter size does the Sigma 18-50mm F2.8 DC DN Contemporary use?

The Sigma 18-50mm F2.8 DC DN Contemporary takes 55 mm screw-in filters.

How close can the Sigma 18-50mm F2.8 DC DN Contemporary focus?

The minimum focus distance of the Sigma 18-50mm F2.8 DC DN Contemporary is 12.1 cm, measured from the sensor plane.

Is the Sigma 18-50mm F2.8 DC DN Contemporary a full-frame lens?

No, the Sigma 18-50mm F2.8 DC DN Contemporary is an APS-C lens. On APS-C cameras its field of view equals 27-75 mm in full-frame terms.

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