ART24-70mm F2.8 DG DN
- Best-in-class optical performance
- 3 aspheric lenses to minimize aberrations
- FLD and special low dispersion (SLD) glass
- Stepping motor for high speed, quiet AF
- Dust and splash resistant structure
- Water and oil repellent coating
- Compatible with the Eye-Detection AF
- NPC (Nano Porous Coating)
- Designed to minimize flare and ghosting
- Compatible with Lens Aberration Correction*
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*Function available on supported cameras only. Available corrections / functionality may vary depending on camera model.
AWARDS
- 2020 BEST MIRRORLESS STANDARD ZOOM LENS TIPA
Sony E-mount: 87.8mm x 124.9mm / 3.5 in. x 4.9 in.
Sony E-mount: 830g / 29.0 oz.
LENS CONSTRUCTION
- FLD glass
- SLD glass
- Aspherical lens
MTF CHART
The MTF (Modulation Transfer Function) is one of the measurements for evaluating a lens' performance, and it shows how faithfully the contrast of the subject can be reproduced on the image plane. The horizontal axis shows the image height (distance from the center of the image in mm) and the vertical axis shows the contrast value (maximum value is 1).
The closer the 10 line pairs/mm curve is to 1, the higher the contrast and clarity of the lens is, and similarly, the closer the 30 line pairs/mm curve is to 1, the better the resolution and sharpness of the lens is.
*The MTF chart depicts the result at the wide-open aperture.
*For mirrorless lenses that support distortion correction, the horizontal axis shows the image height equivalent to when an L-Mount lens is attached to a Sigma L-Mount camera with distortion correction applied. (The effect of distortion correction may differ depending on the mount and camera used.)
*The spatial frequency indicates the variation on the image plane before distortion correction is performed.
Spatial Frequency
S: Sagittal Line
M: Meridional Line
10lp/mm
30lp/mm
DIFFRACTION MTF 24MM
DIFFRACTION MTF 70MM
GEOMETRICAL MTF 24mm
GEOMETRICAL MTF 70mm
