Sigma AF 135mm f/1.4 DG Art L-mount

Exclusively for mirrorless cameras
Compatible with full frame cameras

• Great bokeh for expressive images
• High-quality optical construction for exquisite portraits
• Fast, precise autofocus to capture fleeting moments
• Numerous functions and outstanding build quality for
  professional use

Revolutionary portrait photography with the world's first* AF 135mm F1.4.

The Sigma 135mm F1.4 DG | Art is the world's first 135mm autofocus lens with a maximum aperture of F1.4. This feature offers
extraordinary expressive possibilities for portrait photography.

Its incomparable bokeh and breathtaking resolution, which reproduces every detail, create images with exceptional depth and three-dimensionality.

The natural perspective and moderate shooting distance, which are unique to 135mm, combined with the powerful bokeh of the fast F1.4 aperture ensure that the subject stands out and is rendered on a completely different level compared to conventional 135mm F1.8 lenses.

Building on the extensive know-how that Sigma has gained in the development of numerous F1.4 fixed focal length lenses, the Sigma 135mm F1.4 DG | Art sets new standards in portrait photography.
*According to Sigma research, as of September 2025

MAIN FEATURES

Great bokeh for expressive images

Unsurpassed bokeh opens up new expressive possibilities
The most striking feature of the Sigma 135mm F1.4 DG | Art is its extremely strong bokeh. The effective aperture diameter* of the 135mm F1.4 Lens creates exceptional foreground and background blur. This is even softer than that of the Sigma 105mm F1.4 DG HSM | Art, known as the "Bokeh Master", and is comparable to that of the Sigma 200mm F2 DG OS | Sports. The natural perspective that only a 135mm lens can offer, together with the stunning bokeh, enhances the subject and creates unique, spatial portraits that are only possible with this lens.
*The effective aperture diameter is calculated by dividing the focal length by the f-number. It refers
to the diameter of the light beam that creates an image in the center of the image sensor. A larger effective aperture
results in a shallower depth of field and more pronounced bokeh.

Optical design optimized for natural bokeh
By thoroughly correcting chromatic aberration, which is common in telephoto lenses, the Sigma 135mm F1.4 DG | Art delivers clear bokeh without colour fringing. The optical design also minimizes vignetting and ensures natural, almost circular bokeh bubbles even at the edges - and delivers the full potential of the wide-open aperture.

Sigma's craftsmanship behind the beautiful bokeh
An aperture consisting of 13 blades provides the Sigma 135mm F1.4 DG | Art with absolutely soft foreground and background blur. The exceptionally precise aspherical lenses further enhance the softness of the out-of-focus areas. This beautiful, natural bokeh is based on the know-how that Sigma has acquired through many years of developing F1.4 fixed focal length lenses and the modern production technology at the factory in Aizu.

High-quality optical construction for exquisite portraits

Cleardetail reproduction even at maximum aperture
Four large FLD glass elements in combination with strategically placed glass elements with high dispersion ensure that axial chromatic aberration, which tends to be more pronounced in fast telephoto lenses, is thoroughly suppressed. As a result, the Sigma 135mm F1.4 DG | Art delivers sharp details even at full aperture and makes outstanding use of the exceptionally shallow depth of field that only a 135mm F1.4 can offer as a creative tool.

Floating focus system for consistent sharpness
A floating focus system moves the two focus lens groups of the Sigma 135mm F1.4 DG | Art independently of each other and thus ensures a consistently high resolution over the entire focus range.

Optical design to minimize flares and ghosting
Flares and ghosting have been largely eliminated thanks to state-of-the-art simulation technology of all light incidence situations during the development phase of the Sigma 135mm F1.4 DG | Art. As a result, the lens delivers clear and sharp results in all conditions.

Fast, precise autofocus to capture fleeting moments

HLA drivefor speed and precision
The Sigma 135mm F1.4 DG | Art has two focus groups responsible for focusing. These are each driven by their own HLA motor (High-response Linear Actuator), creating a dual HLA system. The fact that there are two different types of HLA, which are optimized for the respective movement range of their focus group, means that this dual HLA system guarantees both the high thrust required for fast telephoto lenses as well as fast and precise AF performance. This means that even fleeting and fast-moving subjects can be captured with exceptional reliability.

Numerous functions and outstanding build quality for professional use

A wide range of features for exceptional functionality
The Sigma 135mm F1.4 DG | Art offers two AFL buttons that can be assigned individual functions via the camera menu on compatible cameras. The lens also has an aperture ring for setting the aperture directly on the lens. Thanks to the "de-click function", this feature is also interesting for filmmakers , as silent adjustment is possible without clicking the aperture . Those who prefer to set the aperture on the camera body can simply use the lock function of the aperture ring and are protected against accidental adjustment.

Dust protection, splashwater protection* and water and oil repellent coating
In addition to the dust and splash water protected body*, the front lens of the Sigma 135mm F1.4 DG | Art is provided with a water and oil repellent coating . Even in difficult shooting conditions, can be photographed without worry.
* The Lens is dust and splash-proof, but not waterproof. Make sure that the Lens does not
come into complete contact with water. Water inside a lens can cause major damage and even make it
irreparable.

Outstanding build quality of the Sigma Art product line
Metal components such as aluminum and magnesium alloys are combined with special engineering plastics such as TSC* and strategically placed throughout the
construction. This creates a balance in the Sigma 135mm F1.4 DG | Art between the resilience required to support the optical system of a large diameter Lens and the lightweight design necessary for comfortable handling. The Art series generally offers remarkable rigidity, durability and build quality and stands for long-term reliability.
*TSC (Thermally-Stable-Composite) is a type of polycarbonate with a thermal expansion rate similar to that of
aluminum. It has a high affinity to metal parts, which contributes to high-quality product manufacturing.

Arca-Swiss compatible tripod clamp
The Sigma 135mm F1.4 DG | Art has a lightweight yet robust Arca Swiss compatible tripod clamp made of a magnesium alloy. This provides excellent stability when shooting from a tripod for studio shots and longer shoots, allowing photographers to concentrate fully on their creative work . The tripod clamp is removable and the resulting groove can be replaced with the supplied cover.

Supplied lens hood with locking mechanism
The lens hood supplied with the Sigma 135mm F1.4 DG | Art is equipped with a locking button that ensures secure attachment and removal. The lens hood is made of CFRP, a polycarbonate material reinforced with carbon fiber. This makes it both lightweight and durable.

OTHER FEATURES

• HLA (High-response Linear Actuator)
• Water and oil-repellent coating (front lens)
• AFL buttons in 2 positions - Only for compatible cameras. The available functions may vary depending on the camera used.
• Aperture ring click switch and aperture ring lock switch
• Focus mode switch
• Dust and splash protection
• Connection change service possible
• Switchable between linear and non-linear transmission of the
  focus ring - Only in L-mount. Only in combination with compatible cameras of the L-mount system.
• Compatible with the USB dock UD-11 - Optionally available / Only for L-mount
• Each individual Lens runs through SIGMA's own MTF measuring system

TECHNICAL DATA (The data refers to the L-mount version)

• Lens construction: 17 elements in 13 groups (4 FLD, 2 aspherical glass elements)
• Angle of view: 18.2°
• Number of aperture blades: 13 (round aperture)
• Smallest aperture: F16
• Closest focusing distance: 110 cm
• Largest magnification: 1:6.9
• Filter size: Ø 105 mm
• Dimensions (maximum diameter x length): 111.7 mm x 135.5 mm
• Weight: 1,430g