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Certified Keeper Highest score Sigma 50-120mm f/2.8 DC OS Contemporary
94 PixelMeter Score 6 reviews
Certified Keeper Tamron 12-20mm f/2.8
88 PixelMeter Score 20 reviews

Pros Pros
  • Compact and lightweight construction
  • Sharp optical performance with high contrast
  • Effective autofocus and image stabilization
  • Constant f/2.8 maximum aperture
  • Weather-resistant design
 Pros
  • Fast and reliable autofocus
  • Lightweight and portable build
  • Excellent sharpness and image quality
  • Feature-rich design with customizable controls
  • Competitive pricing compared to rivals
Cons Cons
  • Poorly positioned and overly sensitive aperture ring
  • Visible distortion and vignetting
  • Noticeable flare when shooting toward light sources
  • Soft corner sharpness at wide apertures
  • Inconsistent autofocus tracking on certain systems
 Cons
  • Lack of front filter threads due to fixed hood
  • Corner softness at various focal lengths
  • Presence of optical distortion and vignetting
  • Complexity of advanced features

Launch price Launch price $799 Launch price $1,699
Focal length & aperture Focal length & aperture 50-120mm f/2.8 Focal length & aperture 12-20mm f/2.8
Mount & coverage Mount & coverage Sony E, Canon RF, Fujifilm X · APS-C Mount & coverage Sony E, Nikon Z · Full-Frame
Stabilization Stabilization Optical IS, 6.5 stops (CIPA) Stabilization None
Close focus Close focus 23.1–55.1 cm Close focus 18–28.2 cm (0.17x)
Filter thread Filter thread 55mm Filter thread —
Weight & size Weight & size 390g (13.8 oz) · 66.8 x 97 mm (2.63 x 3.82 in) Weight & size 570g (1 lb 4.1 oz) · 90 x 119 mm (3.54 x 4.69 in)
Autofocus motor Autofocus motor — Autofocus motor VXD

Announcement date Announcement date October 8, 2026 Announcement date July 15, 2026
Launch MSRP Launch MSRP $799 Launch MSRP $1,699
Lens mount Lens mount Sony E, Canon RF, Fujifilm X Lens mount Sony E, Nikon Z
Image circle coverage Image circle coverage APS-C Image circle coverage Full-Frame
Lens type Lens type Zoom Lens type Zoom
Lens line / series Lens line / series Contemporary Lens line / series Di III

Elements Elements 18 Elements 17
Groups Groups 13 Groups 12
Special elements Special elements 3 SLD, 1 FLD, 4 asph Special elements 1 XGM, 3 GM, 1 XLD, 3 LD
Coatings Coatings — Coatings AX Coating, BBAR-G2 Coating
Front fluorine coating Front fluorine coating — Front fluorine coating Yes

Focal length (wide) Focal length (wide) 50mm Focal length (wide) 12mm
Focal length (tele) Focal length (tele) 120mm Focal length (tele) 20mm
Max aperture Max aperture f/2.8 Max aperture f/2.8
Minimum aperture Minimum aperture f/22 Minimum aperture f/16
Diaphragm blades Diaphragm blades 11 Diaphragm blades 12

Diagonal angle of view Diagonal angle of view 31.7° - 13.5° Diagonal angle of view 121° - 58°

Minimum focus distance Minimum focus distance 23.1–55.1 cm Minimum focus distance 18–28.2 cm
Autofocus motor Autofocus motor — Autofocus motor VXD
Maximum magnification Maximum magnification — Maximum magnification 0.17x
Focus mechanism Focus mechanism — Focus mechanism Internal focus

Optical stabilization (OIS) Optical stabilization (OIS) Yes Optical stabilization (OIS) No
OIS rating OIS rating 6.5 stops OIS rating —

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

Weight Weight 390g (13.8 oz) Weight 570g (1 lb 4.1 oz)
Maximum diameter Maximum diameter 66.8mm (2.63 in) Maximum diameter 90mm (3.54 in)
Length Length 97mm (3.82 in) Length 119mm (4.69 in)
Filter thread Filter thread 55mm Filter thread —
Weather sealing Weather sealing Partial sealing Weather sealing Full weather sealing
Internal zoom Internal zoom — Internal zoom Yes
Tripod collar Tripod collar — Tripod collar Not supported

Lens hood Lens hood — Lens hood Integrated flower-shaped, included
Teleconverter compatibility Teleconverter compatibility — Teleconverter compatibility Not supported