Sigma 24-105mm f/4 DG OS HSM Art Lens (Sigma SA)

Sigma 24-105mm f/4 DG OS HSM is a versatile Art-series zoom lens designed for Sigma SA-mount cameras, offering a 36-157.5mm equivalent focal length range when used with APS-C models. Here are the key features of this lens:

Versatile Focal Length Range:

Covers a useful wide-angle to short-telephoto range, providing flexibility for various shooting situations.

Constant f/4 Maximum Aperture:

Maintains a constant f/4 aperture throughout the zoom range, balancing portability with the ability to work in available lighting conditions.

Advanced Optical Design:

Features two F Low Dispersion (FLD) elements and two Special Low Dispersion (SLD) elements to reduce chromatic aberrations and color fringing, ensuring improved clarity and color accuracy.

Three Aspherical Elements:

Control spherical aberrations and distortion for increased sharpness and accurate rendering.

Super Multi-Layer Coating:

Applied to lens elements to minimize lens flare and ghosting, contributing to contrast-rich and color-neutral imagery, even in challenging lighting conditions.

Hyper Sonic Motor (HSM):

Provides fast, quiet, and precise autofocus performance. Full-time manual focus control is available for additional precision.

Optical Stabilizer (OS):

Minimizes the appearance of camera shake, enhancing the potential for sharp handheld shots, particularly in low-light conditions.

Rounded Nine-Blade Diaphragm:

Constructed from durable, fluorine-coated polycarbonate, contributing to a smooth bokeh quality. Carbon feather film ensures smooth performance during fast continuous shooting.

Durable Construction:

Utilizes Thermally Stable Composite (TSC) material for durability in various environments. The brass bayonet mount ensures improved mounting accuracy and rigidity.

Compatibility with Sigma USB Dock:

Allows fine-tuning of different lens characteristics and firmware updates with the optional Sigma USB Dock.