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Certified Keeper Sigma 28-45mm f/1.8 DG DN Art
87 PixelMeter Score 27 reviews

Pros Pros
  • Exceptional optical performance and sharpness
  • Internal zoom design and build quality
  • Reliable and rapid autofocus performance
  • Effective control of flare and aberrations
  • Fast, constant f/1.8 maximum aperture
Cons Cons
  • Large, heavy, and bulky physical design
  • Limited and narrow zoom focal range
  • Optical imperfections including distortion and vignetting
  • Inconsistent focus performance in certain conditions
  • Performance limitations on specific camera bodies

Launch price Launch price $1,349
Focal length & aperture Focal length & aperture 28-45mm f/1.8
Mount & coverage Mount & coverage Sony E, L-Mount · Full-Frame
Stabilization Stabilization None
Close focus Close focus 30.2 cm (0.25x)
Filter thread Filter thread 82mm
Autofocus motor Autofocus motor HLA (High-response Linear Actuator)
Weight & size Weight & size 950g (2 lb 1.5 oz) · 87.8 x 153.4 mm (3.46 x 6.04 in)

Announcement date Announcement date June 1, 2024
Launch MSRP Launch MSRP $1,349
Lens mount Lens mount Sony E, L-Mount
Image circle coverage Image circle coverage Full-Frame
Lens type Lens type Zoom
Lens line / series Lens line / series Art

Elements Elements 18
Groups Groups 15
Special elements Special elements 5 SLD, 3 aspherical elements
Coatings Coatings Nano Porous Coating, Super Multi-Layer Coating
Front fluorine coating Front fluorine coating Yes

Focal length (wide) Focal length (wide) 28mm
Focal length (tele) Focal length (tele) 45mm
Max aperture Max aperture f/1.8
Minimum aperture Minimum aperture f/16
Diaphragm blades Diaphragm blades 11

Diagonal angle of view Diagonal angle of view 75.4° - 51.3°

Autofocus motor Autofocus motor HLA (High-response Linear Actuator)
Minimum focus distance Minimum focus distance 30.2 cm
Maximum magnification Maximum magnification 0.25x
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 950g (2 lb 1.5 oz)
Maximum diameter Maximum diameter 87.8mm (3.46 in)
Length Length 153.4mm (6.04 in)
Filter thread Filter thread 82mm
Weather sealing Weather sealing Full weather sealing
Internal zoom Internal zoom No
Tripod collar Tripod collar Not supported

Lens hood Lens hood LH878-06, included
Teleconverter compatibility Teleconverter compatibility Not supported