Sigma 18-35mm f1.8 DC HSM Art

Lens SIGMA 18-35mm f1.8 DC HSM Art

The SIGMA 18-35mm f1.8 DC HSM Lens is one of SIGMA's best creations, this lens sets a new benchmark in performance, offering quality that exceeds expectations in every way.

Designed with a focus on sophisticated optical performance and abundant expressive force, the new Arte line offers superior image quality for high-level artistic expression. This new objective incorporates the concept of our new line of Art objectives.

Various types of optical aberrations can affect the image quality of a lens. Chromatic aberration is one of the most important, and minimizing it is essential. There are two types of chromatic aberrations: transverse, which can be corrected with digital processing, and axial, difficult to reduce once the photograph is taken. In the SIGMA 35mm F1.4 DG HSM, the FLD ("F" Low Dispersion) crystal, equivalent in characteristics to fluorite, and the SLD (Special Low Dispersion) crystal help optimize the power distribution of the lens. This optimization minimizes axial chromatic aberration by causing different wavelengths of light to attack the same focusing position, while also minimizing transverse chromatic aberration. In addition, aspherical lenses help minimize astigmatism and field curvature. Thanks to these features, the resolution is extremely high from the center to the edges of the image.

Specs

Construction of the objective	17 items in 12 groups
Minimum aperture	F16
Filter diameter	72mm
Viewing angle	76.5°
Minimum focusing distance	28cm
Dimensions	78mm Diameter x121mm Length
Num. of diaphragm sheets	9 (circular diaphragm)
Maximum magnification	1:4.3
Weight	810g