Sigma 40mm f/1.4 DG HSM Art Lens for Canon EF

Sigma 40mm f/1.4 DG HSM Art Lens:

Short-Normal Prime:

Designed for full-frame Canon EF-mount cameras.

Suitable for APS-C models, providing a 64mm equivalent focal length.

Bright f/1.4 Maximum Aperture:

Well-suited for low-light conditions.

Provides greater control over focus position for shallow depth of field techniques.

Optical Excellence:

Three F Low Dispersion (FLD) and three Special Low Dispersion (SLD) elements reduce color fringing and chromatic aberrations for improved clarity and color accuracy.

One aspherical element helps limit distortion and spherical aberrations for increased sharpness.

Super Multi-Layer Coating:

Minimizes lens flare and ghosting for greater contrast and color accuracy, even in backlit conditions.

Hyper Sonic Motor (HSM) with Full-Time Manual Focus:

Quick, smooth, and quiet autofocus performance.

Full-time manual focus control by rotating the focus ring.

Rounded Nine-Blade Diaphragm:

Contributes to a smooth and pleasing bokeh quality.

Electromagnetic Aperture Mechanism:

Provides greater exposure control stability, especially beneficial for fast continuous shooting rates.

Durable Construction:

Brass bayonet mount for accuracy and durability.

Rubber sealing in the mount design for dust- and splash-resistance.

Protective Coating:

Applied to the front element, water, and oil-repellent to aid in cleaning.

Compatibility with Sigma USB Dock:

Fine-tune different lens characteristics and update firmware using the optional Sigma USB Dock.