2470mm F28 Dg Dn a Toplevel Art Zoom Performance
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24-70mm F2.8 DG DN | A
Acme-level art zoom performance
• Best-in-class operation
• Large-aperture standard zoom lens
• High resolution throughout the unabridged zoom range
• Designed especially for mirrorless
• Zoom lock switch
• Lens hood with a lock
• Dust- and splash-proof structure
• Compatible with the Lens Aberration Correction
• Designed to minimize flare and ghosting
• Evaluation with Sigma'due south own MTF measuring system: A1
• Loftier-precision, rugged brass bayonet mountain
• Available in Sony E-mount and Fifty-Mount
Out of Stock
All-time-in-grade functioning and large-aperture standard zoom lens that offers loftier resolution throughout the entire zoom range. Best-in-class optical functioning
As extra-low dispersion drinking glass materials, 6 sheets of "F" depression 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 iii aspheric lenses, this zoom lens thoroughly subdues aberrations such every bit axial chromatic aberration or sagittal coma aberrations, which are difficult to correct in mail-processing, tailors the resolution and achieves uniformity and superior optical performance from the center to the periphery throughout the zoom range.
In addition to Super Multi-Layer Blanket, Nano Porous Coating* is employed. This lens is designed so every bit to be less affected by potent incident light such every bit flare.
The mirrorless camera-defended design successfully contributes to reduction in the lens size and weight.
* In the SIGMA's ain proprietary blanket technology, NPC (Nano Porous Coating), porous silica is employed for coating materials. A porous silica layer creates Nano-sized pores inside which air is contained. The pores of this size brand it possible to reduce the refractive index significantly, fifty-fifty lower compared with the existing antireflection coatings, thereby drastically reducing reflected light causing flare and ghosting and achieving the high-contrast and articulate image quality.
Ensuring compatibility with the latest full-frame mirrorless camera bodies
The SIGMA 24–70mm F2.8 DG DN ensures compatibility with diverse types of the latest total-framemirrorless camera bodies tailored for L-Mount and Sony E-Mount so as to be capable of exerting the all-time operation under any photographic circumstances, assuming that professional person or advanced apprentice photographers use it.
To the AFL push button, for example, diverse functions tin can be assigned from a photographic camera body, which enhance the operability while photographing. Employing a stepping motor and the latest algorithm successfully establishes a good balance between dispatch and quietness of the AF drive. This enables stress-free focusing.
Furthermore, this lens is compatible with the Centre-Detection AF used more often 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-bending end. This allows yous to come closer to a discipline than the end of a hood to have photographs. The maximum magnifications are ane:2.9 at the wide-angle end and 1:4.v 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 come across a broad range of needs for photography. An AF/MF switch used for the many conventional SIGMA's lenses is too embedded in the lens barrel. Essential and basic functions are besides equipped.
Specifications
| Product Lines | Art |
|---|---|
| Construction | 19 Elements in xv Groups |
| Lens Type | Standard |
| Sensor Size | Full Frame |
| Angle of view | 84.1° – 34.3° |
| Number of diaphragm blades | 11 (Rounded Diaphragm) |
| Minimum discontinuity | F22 |
| Minimum focusing distance | 18 - 38 cm / vii.i - 15.0 in. |
| Maximum magnification ratio | Wide 1:2.ix - Tele 1:4.five |
| Dimensions (bore x length) | Fifty-mount ⌀ 87.8 mm x 122.9 mm |
| Weight (1000) | L-mount 835 thousand |
| Filter diameter | 82mm |
| Edition number | A019 |
| Accessories | Example, Petal Type Hood with Lock (LH878-03) |
| EAN | L-mount |
All figures calculated by L-Mount.
* The appearance, specifications, and the like of the product are subject to modify for improvement without notice.
© SIGMA Imaging Ireland
Source: https://www.sigma-imaging.ie/en_ie/24-70mm-f2-8-dg-dn-a