Sigma 28-70mm F2.8 DG DN C is an Auto Focus (AF) Standard Zoom
lens with 35mm FF max sensor coverage and it is designed to be used with Sony E mount cameras.
Sigma 28-70mm F2.8 DG DN C is compatible with cameras that have Sony E
lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A7 IV
, Sony ZV-E10
and Sony A1
Sigma 28-70mm F2.8 DG DN C is also available for Leica L mount.
Max sensor coverage of Sigma 28-70mm F2.8 DG DN C is 35mm FF
Sigma 28-70mm F2.8 DG DN C has a focal range of 28-70mm and 2.5X zoom ratio. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 42 - 105mm.
Sigma 28-70mm F2.8 DG DN C is available in Black color.
Sigma 28-70mm F2.8 DG DN C features Rotary (extending)
zoom method where the length of the lens changes as you zoom in or out. This makes it possible to design the lens with a smaller minimum length ( generally when it is zoomed out) compared to internal zoom lenses. The disadvantages of this design are being harder to seal against dust and moisture, weight balance shifting while zooming and zoom creep in certain lenses.
Maximum Magnification Ratio
Sigma 28-70mm F2.8 DG DN C has a Max Magnification Ratio of 0.3x
and has a minimum focusing distance of 0.19m
Sigma 28-70mm F2.8 DG DN C is a fixed aperture lens with a constant max aperture of f2.8 from 28mm all the way to the 70mm .
Sigma 28-70mm F2.8 DG DN C's optical formula consists of 16 elements in 12 groups. Following special elements are used in this design:
- 2 FLD
- 2 SLD
- 3 aspherical elements
- Nano Porous
- Super Multi-Layer coating
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