Sigma 50mm DG HSM Lens for Canon EF Standard SLR Cameras F1.4 Mount, Full-Frame

To achieve high resolution, aberrations that affect image quality, such as sagittal coma flare and chromatic aberration, are thoroughly corrected, achieving high-definition images without blurring even at maximum aperture. The internal mechanism is equipped with an ultrasonic motor (HSM) to achieve faster and quieter AF. The AF algorithm has been improved for smoother AF. Full-time manual focus is also available, allowing you to fine-tune the focus by simply turning the focus ring after focusing. The Super Multi-Layer Coating reduces flare and ghosting, delivering high-contrast images even in backlit situations. Canon EF mount 50mm F1.4 Single focus standard SLR full size 0085126311544