With incredible resolution and designed for full-frame sensors, this is the longest focal length of any F1.4 lens in the Art line of products. This lens was designed in such a way that it offers almost no image defects with an incredible resolution and breathtaking contrast. With the longest focal length of the f1.4 Art product line lenses, the new lens combines outstanding resolution with beautiful bokeh. The SIGMA 105mm f1.4 DG HSM | Art was developed with great care so that sharp and blurred areas equally satisfy the eye and is therefore a real "bokeh master". The lens puts image quality first to deliver the truly amazing optical performance promised by the f1.4 Art line of lenses, earning its place as the line's flagship lens.