The Sigma 18-35mm f/1.8 DC HSM Lens for Canon EF-mount is part of the Art series, offering a uniquely fast and versatile design that covers wide-angle to normal focal lengths. Setting itself apart from the competition, this zoom lens features an exceptionally bright f/1.8 constant maximum aperture, making it well-suited for challenging lighting conditions and providing impressive control over depth of field throughout the zoom range. The optical design incorporates a combination of Special Low Dispersion (SLD) and aspherical elements, effectively minimizing aberrations, color fringing, and distortion to achieve high clarity and sharpness. Additionally, a Super Multi-Layer Coating has been applied to control lens flare and ghosting, resulting in improved contrast and color accuracy. Complementing its optical capabilities, the 18-35mm lens features an advanced Hyper Sonic Motor (HSM) and an internal focusing design, ensuring fast, quiet, and precise autofocus performance.
As part of Sigma’s Global Vision series, specifically the Art line, this lens is designed to deliver exceptional optical performance, making it ideal for creative and artistic applications.
Key Features:
– Wide-to-normal zoom lens designed for APS-C-format Canon EF-mount cameras, providing a 28.8-56mm equivalent focal length range.
– Impressive constant f/1.8 maximum aperture excels in low-light conditions and offers greater control over focus position for shallow depth of field techniques.
– Five Special Low Dispersion (SLD) elements reduce color fringing and chromatic aberrations, resulting in improved clarity and color accuracy.
– Four aspherical elements help minimize distortion and spherical aberrations while enhancing overall sharpness and rendering accuracy.
– Super Multi-Layer Coating minimizes lens flare and ghosting, contributing to contrast-rich and color-neutral imagery, even in backlit conditions.
– Integrated Hyper Sonic Motor (HSM) and internal focusing system enable quick, quiet, and accurate autofocus performance. The optimized AF algorithm enhances focusing smoothness, and full-time manual focus control is available by rotating the focus ring.
– Rounded nine-blade diaphragm produces a smooth and pleasing bokeh quality.
– Constructed with Thermally Stable Composite (TSC) material for precision and durability, allowing for use in wide temperature variations. The brass bayonet mount ensures improved mounting accuracy and rigidity.
– Compatible with the optional Sigma USB Dock for fine-tuning various lens characteristics and firmware updates.