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Certified Keeper Sigma 50mm f/1.4 DG DN Art
86 PixelMeter Score 13 reviews

Pros Pros
  • Robust build quality featuring weather sealing
  • Fast, accurate, and silent autofocus performance
  • Effective flare resistance and pleasing bokeh
  • High value and affordability compared to first-party lenses
  • Sharp image quality with excellent contrast
Cons Cons
  • Significant focus breathing during adjustments
  • Visible chromatic aberration and distortion
  • Strong vignetting at wide apertures
  • Physical size and weight concerns

Launch price Launch price $849
Focal length & aperture Focal length & aperture 50mm f/1.4
Mount & coverage Mount & coverage Sony E, L-Mount · Full-Frame
Stabilization Stabilization None
Close focus Close focus 45 cm (0.15x)
Filter thread Filter thread 72mm
Autofocus motor Autofocus motor HLA
Weight & size Weight & size 660g (1 lb 7.3 oz) · 78.2 x 111.5 mm (3.08 x 4.39 in)

Announcement date Announcement date February 7, 2023
Launch MSRP Launch MSRP $849
Lens mount Lens mount Sony E, L-Mount
Image circle coverage Image circle coverage Full-Frame
Lens type Lens type Prime
Lens line / series Lens line / series Art

Elements Elements 14
Groups Groups 11
Special elements Special elements 3 aspherical, 1 SLD
Coatings Coatings Super Multi-Layer Coating
Front fluorine coating Front fluorine coating Yes

Focal length (wide) Focal length (wide) 50mm
Max aperture Max aperture f/1.4
Minimum aperture Minimum aperture f/16
Diaphragm blades Diaphragm blades 11

Diagonal angle of view Diagonal angle of view 46.8°

Autofocus motor Autofocus motor HLA
Minimum focus distance Minimum focus distance 45 cm
Maximum magnification Maximum magnification 0.15x
Focus mechanism Focus mechanism Internal focus

Optical stabilization (OIS) Optical stabilization (OIS) No

Aperture ring Aperture ring Yes
AF/MF switch AF/MF switch Yes

Weight Weight 660g (1 lb 7.3 oz)
Maximum diameter Maximum diameter 78.2mm (3.08 in)
Length Length 111.5mm (4.39 in)
Filter thread Filter thread 72mm
Weather sealing Weather sealing Full weather sealing
Barrel material Barrel material TSC
Internal zoom Internal zoom Yes
Tripod collar Tripod collar Not supported

Lens hood Lens hood LH782-02, included
Teleconverter compatibility Teleconverter compatibility Not supported