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Sigma Art EF 105mm f/1.4

  • Aperture Range: f/1.4 to f/16
  • Super Multi-Layer Coating
  • Weather-Sealed, Protective Front Coating
  • Rounded 9-blade diaphragm
  • Removable lens support adapter bracket


The Sigma Art EF 105mm f/1.4 is a short-telephoto, portrait-length prime distinguished by its bright maximum aperture and advanced optical layout. The fast f/1.4 design greatly benefits working in low-light conditions and also affords extensive control over depth of field for isolating subjects and working with selective focus.As part of the Art line of lenses, this lens is also designed for high-resolution rendering, and utilizes FLD and SLD glass to control chromatic aberrations and color fringing for notable clarity. A Super Multi-Layer Coating also enhances image quality by suppressing lens flare and ghosting for improved contrast and color fidelity in strong lighting conditions. Additionally, a rounded nine-blade diaphragm contributes to a pleasing bokeh quality.

In the Case
  • Sigma Art EF 105mm f/1.4
  • Flexible lens gear with hard stops
  • Lens support adapter bracket
  • Lens cap
  • Body cap

Lens construction

  • FLD glass
  • SLD glass


Lens construction 17 elements in 12 groups
Angle of view 23.3°
Number of diaphragm blades 9 (Rounded diaphragm)
Minimum aperture F16
Minimum focusing distance 100cm / 39.4in.
Maximum magnification ratio 1:8.3
Filter size φ105㎜
(diameter x length)
Φ115.9㎜ × 131.5㎜ / φ4.6in.×5.2in.
Weight 1,645g / 58oz.
All figures calculated by SIGMA. Appearance and specifications are subject to change without notice.

MTF chart

 MTF chart guide

Diffraction MTF
Geometrical MTF


 Distortion guide


 Vignetting guide