Sigma revealed the 65mm DG DN | Contemporary
Image courtesy: Sigma

Today, Sigma introduced its I series of lenses for full-frame mirrorless cameras. The line consists of three new Sigma lenses: the 24mm F3.5 DG DN, 35mm F2 DG DN and the 65mm DG DN.

We believe there is a growing demand for compact, high-performance, high-quality lenses,” reports Sigma America President Mark Amir-Hamzeh. “The introduction of the I series of full-frame mirrorless-exclusive lenses answers this call. The I series represents a new option: premium compact primes that are stylish in appearance with impressive specifications and optical performance.”

Sigma 24mm F3.5 DG DN | Contemporary

Sigma 24mm F3.5 DG DN | Contemporary
Sigma 24mm F3.5 DG DN | Contemporary. Image courtesy: Sigma

According to Sigma, the 24mm F3.5 DG DN lens is capable of edge-to-edge sharpness at all apertures when shooting wide-angle scenes. Designed for photographers looking to capture distant landscapes or zoom in close to smaller objects, the lens has a minimum focus distance of around 10cm and a maximum reproduction ratio of 1:2. Additionally, the lens features glass-molded aspherical elements, SLD glass, and high refractive index glass elements.

Feature breakdown

  • 10 elements in 8 groups, with 1 SLD glass and 3 aspherical lenses
  • Compatible with high-speed autofocus
  • Stepping motor
  • Compatible with lens-based optical correction
  • Super Multi-Layer Coating
  • Aperture ring
  • Focus Mode Switch
  • Petal Type Lens Hood
  • Compatible with SIGMA USB DOCK UD-11
  • Supports DMF, AF+MF (for Sony E-mount only)
  • 7-blade rounded diaphragm
  • Dust and splash-proof mount
  • Inner focus
  • All-metal body, metal internal parts and a metal lens hood.

Sigma 35mm F2 DG DN | Contemporary

Sigma 35mm F2 DG DN | Contemporary
Sigma 35mm F2 DG DN | Contemporary. Image courtesy: Sigma

The Sigma 35mm F2 DG DN comes with a maximum aperture of F2 packed inside a small body. Sigma claims the lens is highly portable thanks to its “modest” size and weight, allowing it to be carried around in a small gear bag. Its axial chromatic aberration, a point of particular concern with a bright lens, is corrected with SLD glass. Overall, the Sigma 35mm F2 DG DN looks well suited for night sky photography thanks to its lens design. It looks to provide good correction of sagittal coma aberration, allowing it to capture the fine details you would want to capture when shooting the night sky.

Feature breakdown

  • 10 elements in 9 groups, with 1 SLD glass and 3 aspherical lenses
  • Compatible with high-speed autofocus
  • Stepping motor
  • Compatible with lens-based optical correction
  • Super Multi-Layer Coating
  • Aperture ring
  • Focus Mode Switch
  • Lens hood
  • Compatible with SIGMA USB DOCK UD-11
  • Supports DMF, AF+MF (for Sony E-mount only)
  • 9-blade rounded diaphragm
  • Arc-type auto/manual focus mode switch
  • Dust and splash-proof mount
  • Inner focus
  • All-metal body, metal internal parts and a metal lens hood

Sigma 65mm DG DN | Contemporary

Sigma 65mm DG DN | Contemporary
Sigma 65mm DG DN | Contemporary. Image courtesy: Sigma

The Sigma 65mm DG DN lens is capable of shooing fine details, featuring a maximum aperture of F2. The lens corrects axial chromatic aberration by utilizing SLD glass. Also, the lens’ pair of glass-molded aspherical lenses are used to correct spherical and chromatic aberration.

Feature breakdown

  • 12 elements in 9 groups, with 1 SLD glass and 2 aspherical lenses
  • Compatible with high-speed autofocus
  • Stepping motor
  • Compatible with lens-based optical correction
  • Super Multi-Layer Coating
  • Aperture ring
  • Focus Mode Switch
  • Lens hood
  • Compatible with SIGMA USB DOCK UD-11
  • Supports DMF, AF+MF (for Sony E-mount only)
  • 9-blade rounded diaphragm
  • Arc-type auto/manual focus mode switch
  • Dust and splash-proof mount
  • Inner focus
  • All-metal body, metal internal parts, and a metal lens hood

Pricing and availability

All three Sigma I series lenses will be out in mid-January, 2021. Here’s a breakdown of the line’s prices:

24mm F3.5 DG DN | Contemporary — $549
35mm F2 DG DN | Contemporary — $639
65mm DG DN | Contemporary — $699

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