Best-in-class optical performance
The F2.8 Art zoom flagship zoom lens series is developed primarily to achieve superior optical performance.
As extra-low dispersion glass materials, six sheets of “F” low dispersion (FLD) glass and two sheets of special low dispersion (SLD) glass are lavishly employed while taking advantage of an optical design dedicated for mirrorless lenses. By employing three aspheric lenses, this zoom lens thoroughly subdues aberrations such as axial chromatic aberration or sagittal coma aberrations, which are difficult to correct in post-processing, tailors the resolution and achieves uniformity and superior optical performance from the centre to the periphery throughout the zoom range.
Ensuring compatibility with the latest full-frame mirrorless camera bodies
The SIGMA 24–70mm F2.8 DG DN ensures compatibility with various types of the latest full-frame mirrorless camera bodies tailored for L-Mount and Sony E-Mount so as to be capable of exerting the best performance under any photographic circumstances, assuming that professional or advanced amateur photographers use it.
To the AFL button, for example, various functions can be assigned from a camera body, which enhance the operability while photographing. Employing a stepping motor and the latest algorithm successfully establishes a good balance between acceleration and quietness of the AF drive. This enables stress-free focusing. Furthermore, this lens is compatible with the Eye-Detection AF used more frequently in mirrorless cameras, which is capable of high-precision focusing at the time of portrait photography.
Adaptable to various uses and photographic environments
The minimum focusing distance is 18 cm at the wide-angle end. This allows you to come closer to a subject than the end of a hood to take photographs. The maximum magnifications are 1:2.9 at the wide-angle end and 1:4.5 at the telephoto end, which provides a wider range of expression by close-up photography.
Furthermore, the lens adapts to various uses and usage environments through employment of the dust- and splash proof structure and the zoom lock mechanism for preventing the lens barrel from extending unexpectedly, and meet a wide range of needs for photography. An AF/MF switch used for the many conventional SIGMA’s lenses is also embedded in the lens barrel. Essential and basic functions are also equipped.
The lens body is elaborately made in detail. Its operating parts such as a zoom ring and manual ring are nice to the touch.
Zoom lock switch
Lens hood with a lock
Mount with dust- and splash-proof structure
Compatible with the Lens Aberration Correction
Available Mount conversion service
Designed to minimize flare and ghosting
Evaluation with SIGMA’s own MTF measuring system: A1
11-blade rounded diaphragm
High-precision, rugged brass bayonet mount
Lens construction: 15 groups, 19 elements
Angle of view: 84.1–34.3°
Number of diaphragm blades: 11 (Rounded diaphragm)
Minimum aperture: F22
Minimum focusing distance: 18–38cm
Maximum magnification ratio: Wide 1:2.9-Tele 1:4.5
Filter size: 82mm
Dimensions (diameter x length): 87.8mm × 122.9mm