Sigma AF 28-70MM F/2.8 DG DN (C) F/SE
by SigmaE-Mount Lens/Full-Frame Format
Aperture Range: f/2.8 to f/22
Two FLD Elements, Two SLD Elements
Three Aspherical Elements
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Sadržaj pakiranja
- Sigma 28-70mm f/2.8 DG DN Contemporary Lens for Sony E
- Sigma LCF-67 III 67mm Lens Cap
- Sigma Rear Cap LCR II for Sony E Mount Lenses
- LH706-01 Lens Hood
- Lens Case
The 28-70mm f/2.8 DG DN Contemporary Lens for Sony E-Mount from Sigma is a versatile wide-angle to portrait-length zoom characterized by its f/2.8 constant maximum aperture. The design suits working in available lighting conditions while affording increased control over depth of field. More lightweight and compact than similar 24-70mm lenses, it's optical design incorporates two FLD and two SLD low-dispersion elements plus three aspherical elements that reduce a variety of aberrations to achieve high sharpness, enhanced clarity, and improved color accuracy. It features just one lightweight focusing element, which keeps the AF unit small. This, along with a quiet and fast stepping motor, makes for responsive and near-silent autofocus performance, an ideal combination for filmmakers looking for a high-performance, lightweight, and easy-to-handle camera system that works well with a gimbal or other accessories.
Each optical surface features Super Multi-Layer and Nano Porous coatings to improve contrast and color rendering by suppressing lens flare and ghosting for optimal light transmission, and an added water- and oil-repellent coating on the front optic helps keep the lens free from smudges and droplets. The weather-sealed design benefits working in trying environmental conditions, and a nine-blade rounded diaphragm contributes a pleasing bokeh quality when using wider apertures.
Standard zoom for full-frame E-mount mirrorless cameras
42-105mm equivalent focal length when used on an APS-C camera
Constant f/2.8 maximum aperture for Low light use and depth-of-field control
Two F Low Dispersion (FLD) and two Special Low Dispersion (SLD) elements reduce chromatic aberrations and color fringing
Three aspherical elements control spherical aberrations and distortion
Both Super Multi-Layer and Nano Porous coatings minimize lens flare and ghosting and produce contrast-rich and color-neutral imagery
Integrated stepping motor and optimized AF algorithm provides quick and quiet autofocus
28mm minimum focus distance:19 cm, 1:3.3 magnification
70mm minimum focus distance: 38 cm, 1:4.6 magnification
Rounded nine-blade diaphragm for a pleasing bokeh quality
Brass bayonet for mounting accuracy and rigidity
Rubber sealing for dust- and splash-resistance
| Focal Length | 28 to 70mm |
| Maximum Aperture | f/2.8 |
| Minimum Aperture | f/22 |
| Lens Mount | Sony E |
| Format Compatibility | Full-Frame |
| Angle of View | 75.4° to 34.3° |
| Minimum Focus Distance | 7.5" / 19 cm |
| Maximum Magnification | 3.3 to 4.6x |
| Optical Design | 16 Elements in 12 Groups |
| Diaphragm Blades | 9, Rounded |
| Focus Type | Autofocus |
| Image Stabilization | No |
| Filter Size | 67 mm (Front) |
| Dimensions (ø x L) | 2.8 x 4" / 72.2 x 101.5 mm |
| Weight | 16.6 oz / 470 g |
- Novo
