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Black cylindrical lens with silver mount ring and focus ring

SIGMA

SIGMA 24mm f/1.4 DG DN Art L-Mount camera lens

SKU CH-CB3H-YACN4

A 24 mm f/1.4 full-frame prime for L-Mount with 17 elements in 14 groups, two FLD and one SLD glass, four aspherical elements, Super Multilayer Coating, STM autofocus.

  • TypeFixed Length Lens
  • Bright f/1.4 aperture for low-light shooting
  • 11-blade rounded diaphragm creates smooth background blur
  • 17 elements in 14 groups with FLD, SLD and aspherical glass
  • STM motor delivers quiet, precise autofocus
  • Brass bayonet mount ensures durable lens attachment

Prime wide-angle lens for L-mount systems

The SIGMA 24mm f/1.4 DG DN Art is a fixed focal length lens built for the Leica L mount and full-frame sensors. It combines a bright f/1.4 maximum aperture with an optical formula of 17 elements in 14 groups, including two FLD, one SLD and four aspherical elements. A Super Multilayer Coating reduces flare while an STM motor drives quiet autofocus.

Suited to low-light and astrophotography work

Photographers who need a wide, fast prime for night skies, environmental portraits or interior reportage will benefit from the f/1.4 aperture and corrected sagittal coma flare. The rounded 11-blade diaphragm produces smooth background rendition. Buyers who require zoom flexibility or a narrower field of view should consider a different focal length.

Maximum aperture f/1.4 governs low-light capability

The f/1.4 maximum aperture is the single specification that determines whether this lens gathers enough light for your intended shooting conditions. It enables fast shutter speeds in darkness and shallow depth of field for subject separation. Stopped down to f/16 the diaphragm provides deep focus when needed.

Highlights

  • Bright f/1.4 aperture for low-light shooting
  • 11-blade rounded diaphragm creates smooth background blur
  • 17 elements in 14 groups with FLD, SLD and aspherical glass
  • STM motor delivers quiet, precise autofocus
  • Brass bayonet mount ensures durable lens attachment

Specifications

TypeFixed Length Lens

Questions about this item

How much heat does the 24mm f/1.4 lens generate during all-day astrophotography sessions?

The lens has no active electronics that produce noticeable heat; only the STM focus motor draws minimal power during operation, so the barrel stays near ambient temperature even after hours of continuous shooting.

Which camera bodies can I mount this L-Mount lens on without an adapter?

Any full-frame or APS-C body with a native L-Mount bayonet — such as Leica SL, Panasonic S-series or Sigma fp cameras — accepts the brass mount directly.

Will the 11-blade diaphragm work smoothly with older L-Mount bodies that only support mechanical aperture control?

The aperture is fully electronic; the 11 rounded blades are driven by the camera body, so they function identically on every L-Mount camera regardless of age.

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