The Sigma 70mm f/2.8 DG DN AF MACRO Art lens with Canon EF, Sony E, and Sigma mounts is a member of Sigma's Art family characterized by its advanced optical construction and robust design. The combination of low-dispersion FLD and SLD elements helps to reduce chromatic aberrations, while a pair of aspherical elements, one of which is at the rear of the lens, further minimizes distortion and aberration. The optical design of 13 elements in 10 groups delivers consistent peripheral brightness and sharpness, even at a maximum aperture of f/2.8. A Super Multi coating has been applied to the lens elements to reduce flare and ghosting.
This lens has an efficient hypersonic motor that is fast, smooth and quiet. Nine rounded diaphragm blades contribute to a pleasing out-of-focus quality with shallow depth of field.
The Sigma 70mm f/2.8 DG DN AF MACRO Art lens with Canon EF, Sony E, and Sigma mounts is a member of Sigma's Art family characterized by its advanced optical construction and robust design. The combination of low-dispersion FLD and SLD elements helps to reduce chromatic aberrations, while a pair of aspherical elements, one of which is at the rear of the lens, further minimizes distortion and aberration. The optical design of 13 elements in 10 groups delivers consistent peripheral brightness and sharpness, even at a maximum aperture of f/2.8. A Super Multi coating has been applied to the lens elements to reduce flare and ghosting.
This lens has an efficient hypersonic motor that is fast, smooth and quiet. Nine rounded diaphragm blades contribute to a pleasing out-of-focus quality with shallow depth of field.
Sigma's Art Macro 70mm f/2.8 DG, a 1:1, full-frame macro lens well suited for close-ups and macro subjects optimised for remarkable image clarity at short distances, is also distinguished by its optical design that makes use of two FLD elements, two SLD elements, one anomalous partial dispersion/high refractive index element and two aspherical elements to limit both chromatic and spherical aberrations for great clarity, sharpness and colour accuracy. The multi-layer coating also enhances image quality by suppressing lens flare and ghosting to improve contrast and colour fidelity in bright light conditions. In addition, a rounded nine-bladed diaphragm contributes to a pleasing bokeh result.
It features a coreless DC motor that delivers fast and accurate autofocus performance, along with full-time manual focus override, benefiting imaging assets. The physical design uses Thermally Stable Composite material for durability in a wide range of environments, and a brass bayonet mount also offers rigidity and mounting precision.
This short telephoto lens is designed for Sony's E-mount mirrorless cameras, but can also be used with APS-C models, to which it provides an equivalent focal length of 105mm. It consists of 13 elements in 10 groups.
The true macro design offers a maximum magnification of 1:1 at actual size together with a minimum focusing distance of 10.2" to suit close-up subject work.
The lens is constructed of a thermally stable composite (TSC) material, along with traditional metals, for greater precision and use in wide temperature variations, compatible with the optional EM-140 DG macro ring flash when used in conjunction with the separate 65mm macro flash adapter for even illumination at close working distances.
Data sheet
Specific References
| Construcción del objetivo | 13 elementos en 10 grupos |
| Apertura mínima | F22 |
| Ángulo de visión (35mm equivalente) | 34.3° |
| Distancia mínima de enfoque | 25,8cm |
| Dimensiones (Diámetro x Longitud) | φ70.8㎜ × 105.8㎜ |
| Número de láminas del diafragma | 9 (Diafragma circular) |
| Ampliación máxima | 1：1 |
| Monturas disponibles | SIGMA / CANON / SONY E |
