Revolutionising portraits with the AF 135mm f/1.4.
The Sigma 135mm f/1.4 DG Art is a 135mm autofocus lens to achieve a maximum aperture of f/1.4, delivering exceptional expressive capabilities for portrait photography. Its unrivalled large bokeh and stunning resolution that renders every detail create an extraordinary sense of depth and dimensionality.
The natural perspective and moderate shooting distance unique to 135mm, combined with the rich bokeh of the bright f/1.4 aperture, make the subject stand out and render on an entirely different level compared to conventional 135mm f/1.8 lenses.
Built on extensive expertise gained from developing numerous f/1.4 prime lenses, this new 135mm lens from Sigma sets a new standard in portrait photography.
Optical design optimised to produce the natural bokeh
Thorough correction of chromatic aberration, which is common in telephoto lenses, achieves clear bokeh without colour bleeding. The design also minimises vignetting, rendering natural, near-circular bokeh even at the edges.
Sigma’s craftsmanship behind the beautiful bokeh
A 13-blade diaphragm maintains a circular bokeh shape, while exceptional precision in aspherical lens processing further enhances its smoothness. This beautiful, natural bokeh is the result of Sigma’s know-how gained through development of f/1.4 prime lenses over many years and the advanced manufacturing technology cultivated at its Aizu factory.
Clear subject detail even at maximum aperture
Four large FLD glass elements are positioned, along with strategically placed high-dispersion glass elements to thoroughly suppress axial chromatic aberration, which tends to be more pronounced in large-aperture telephoto lenses. As a result, the lens delivers crisp subject detail even when shot wide open, making full use of the exceptionally shallow depth of field unique to a 135mm f/1.4.
Dual HLA for fast, precise autofocus
Each of the two focus groups is driven by its own HLA (High-response Linear Actuator), forming a dual HLA system. By incorporating two distinct types of HLAs, each optimised for the movement range of a focus group, the dual HLA system ensures both the high thrust needed for large-aperture telephoto lenses and fast, precise AF performance. This allows even fleeting expressions and fast-moving subjects to be captured with exceptional reliability.
Designed to minimise flare and ghosting
Flare and ghosting, which reduce image quality, are addressed under all conditions of incident light, based on the most advanced simulation technology and Sigma’s Super Multi-Layer Coating. High backlight resistance enables clear and sharp images under any lighting conditions.
Various shooting assist functions
The lens is equipped with an AFL button in two locations, which can be assigned to a range of functions via the menu on selected cameras. In addition to the aperture ring, the lens is equipped with an aperture ring lock switch and a click switch to turn the click on and off.
Arca-Swiss compatible tripod socket for long studio shoots
The lens comes with a lightweight yet robust tripod socket made of magnesium alloy, compatible with Arca-Swiss clamps. It provides excellent stability during studio sessions and extended shooting, helping photographers stay focused on their creative expression. The tripod socket is also removable and can be replaced with the supplied protective cover.
