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Sigma 28-70mm f/2.8 EX DG

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28-70mm f/2.8 EX DG

Rating: 4.5 out of 54.5 out of 54.5 out of 54.5 out of 54.5 out of 54.5 out of 5

Manufacturer's Description:



"Compact, lightweight, yet robust, large aperture zoom lens



This compact, large and constant F2.8 aperture zoom lens and is ideal for digital SLR cameras. Two SLD elements and four aspherical lenses provide the ultimate correction against distortion as well as all types of aberration, especially spherical aberration. Its advanced optical design ensures high performance throughout the entire zoom range.

The use of aspherical lenses in the construction of this lens not only corrects aberrations but also produces a very small and lightweight lens design. Its compact, yet robust, construction has an overall length of 87.2mm, maximum diameter of 74mm, filter size of diameter 67mm and weight of 510g."
Availability
Discontinued No Edit
Year announced No Data Edit
General
Lens Mounts
  • Canon EF
  • Minolta AF
  • Nikon AF D
  • Pentax K SMC-FA
  • Sigma SA
Edit
Focal Type Standard zoom Edit
Lens
Focal Length 28mm - 70mm Edit
Angle of View 35 - 76 Edit
Max Aperture f/2.8 Edit
Min Aperture f/22 Edit
Filter Size 67mm Edit
35mm equivalent No Data Edit
Internal focusing No Data Edit
Focusing
Min Focus 33cm Edit
Stabilised No Edit
Macro No Edit
Construction
Blades 9 Edit
Elements 14 Edit
Groups 12 Edit
Box Contents
Box Contents No Data Edit
Dimensions
Weight 510g Edit
Height 87.2mm Edit
Diameter 74mm Edit
MTF Data
Effective focal length No Data Edit
Weighted MTF No Data Edit
Average Weighted MTF No Data Edit
Weighted MTF 10 lp/mm No Data Edit
Weighted MTF 20 lp/mm No Data Edit
Weighted MTF 40 lp/mm No Data Edit
Distortion No Data Edit
Grade No Data Edit
Photodo MTF Score No Data Edit

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