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Pros Pros
  • Exceptional sharpness across the frame, including at wide apertures
  • Fast, silent, and accurate autofocus performance
  • Solid, high-quality build construction
  • Attractive pricing relative to professional-grade alternatives
  • Minimal distortion and chromatic aberration
Cons Cons
  • Substantial size and heavy weight
  • Lack of weather sealing
  • Inconsistent autofocus accuracy in some conditions
  • Visible vignetting at wide apertures
  • Bokeh quality can appear nervous or smudgy in complex backgrounds

Launch price Launch price $949
Focal length & aperture Focal length & aperture 50mm f/1.4
Mount & coverage Mount & coverage Sigma SA, Sony A · Full-Frame
Stabilization Stabilization None
Close focus Close focus 40 cm (0.18x)
Filter thread Filter thread 77mm
Autofocus motor Autofocus motor Ring-type ultrasonic
Weight & size Weight & size 815g (1 lb 12.7 oz) · 85.34 x 99.82 mm (3.36 x 3.93 in)

Announcement date Announcement date January 1, 2014
Launch MSRP Launch MSRP $949
Lens mount Lens mount Sigma SA, Sony A
Image circle coverage Image circle coverage Full-Frame
Lens type Lens type Prime
Lens line / series Lens line / series Art

Elements Elements 13
Groups Groups 8
Special elements Special elements SLD glass, Aspherical lens
Coatings Coatings Super Multi-Layer Coating

Focal length (wide) Focal length (wide) 50mm
Max aperture Max aperture f/1.4
Minimum aperture Minimum aperture f/16
Diaphragm blades Diaphragm blades 9

Diagonal angle of view Diagonal angle of view 46.8°

Autofocus motor Autofocus motor Ring-type ultrasonic
Minimum focus distance Minimum focus distance 40 cm
Maximum magnification Maximum magnification 0.18x
Focus mechanism Focus mechanism Internal focus

Optical stabilization (OIS) Optical stabilization (OIS) No

Weight Weight 815g (1 lb 12.7 oz)
Maximum diameter Maximum diameter 85.34mm (3.36 in)
Length Length 99.82mm (3.93 in)
Filter thread Filter thread 77mm
Weather sealing Weather sealing None

Lens hood Lens hood LH830-02, included