The SIGMA 105mm F1.4 DG HSM (A) for Canon is a high-performance lens designed specifically for full-frame DSLR cameras. It is part of SIGMA's prestigious Art line, known for its exceptional optical quality and artistic capabilities.

Key Features

Focal Length and Aperture: This lens offers a focal length of 105mm with a maximum aperture of F1.4, making it ideal for portrait photography and low-light conditions. The wide aperture allows for beautiful background blur (bokeh) and excellent subject isolation.

Optical Construction: The lens is constructed with 17 elements in 12 groups, including three FLD (F Low Dispersion) elements, two SLD (Special Low Dispersion) elements, and one aspherical element. This design minimizes optical aberrations while enhancing sharpness and contrast across the frame.

Bokeh Master: The lens is often referred to as a "bokeh master" due to its ability to produce stunningly smooth out-of-focus areas. This is achieved through its rounded diaphragm with 9 blades, which contributes to a pleasing bokeh effect.

Durability and Weather Resistance: The SIGMA 105mm F1.4 features a dust- and splash-resistant structure, making it suitable for outdoor photography in various weather conditions. It also has a water- and oil-repellent front coating to protect against smudges and moisture.

Autofocus System: Equipped with a Hyper Sonic Motor (HSM), this lens provides fast, silent autofocus, along with a full-time manual focus override option, allowing photographers to make precise adjustments when needed