Introducing the new standard in 135mm telephoto lenses, the Sigma 135mm f/1.8 DG HSM Art Lens for L-Mount pairs bright and sophisticated optics with intuitive handling and design. As part of the Art line of lenses, this 135mm f/1.8 is designed for high-resolution rendering, and utilizes FLD and SLD glass to control chromatic aberrations and colour fringing for notable clarity. A Super Multi-Layer Coating also enhances image quality by suppressing lens flare and ghosting for improved contrast and colour fidelity in strong lighting conditions. Additionally, making it an ideal lens for portraiture, the bright f/1.8 maximum aperture pairs with a rounded nine-blade diaphragm to benefit selective focus and shallow depth of field imaging with smooth bokeh.
The 135mm focal length delivers a strong perspective compression effect, while the large diameter with F1.8 brightness provides a dramatic bokeh effect. By minimizing axial chromatic aberration, the SIGMA 135mm F1.8 DG HSM | Art makes this bokeh effect not only impressive but also beautiful while delivering superb contrast and sharp image quality in every shot. It offers the outstanding resolution required for 50MP or higher ultra-high-megapixel DSLRs.
Complementing the imaging capabilities, the lens sports a Hyper Sonic Motor to produce quick, smooth, and quiet autofocus performance with full-time manual focus override. The physical design utilizes Thermally Stable Composite material for durability in a wide range of environments, and a brass bayonet mount also offers rigidity and mounting precision.
With resolution so crystal-clear that individual hairs can be discerned in a portrait, this large-diameter lens also delivers a beautiful bokeh effect, giving photographers everything they need.
In addition to optimized power distribution, this lens features two SLD (Super Low Dispersion) glass elements and two FLD (“F” Low Dispersion) glass elements. These technologies help minimize chromatic aberrations, which tend to appear in the bokeh area outside of focus in portraits, as well as on slender objects such as fine branches. The end result is ultra-high resolution and clarity throughout the image, even at wide-open aperture.
To deliver the ultra-high resolution that brings the best out of 50MP or higher ultra-high-megapixel cameras, the focus mechanism features SIGMA’s floating system. No matter what the distance from the subject, this lens offers top performance from the center to the edges of the image. By minimizing distortion as well, the lens delivers impeccable image quality—no need for digital adjustment during image processing.
From the start of the design process, SIGMA measured flare and ghosting to establish an optical design that is resistant to strong incidental light sources such as backlight. At the prototyping stage, SIGMA used not only simulations but actual photographic experiments to assess flare and ghosting under multiple criteria, identify the causes of these issues under a wide range of situations, and take measures to mitigate them. In addition, SIGMA’s Super Multi-Layer Coating helps further reduce flare and ghosting and provide sharp, high-contrast images even in backlit conditions.
|Large HSM, dust/splash-proof construction||The large HSM delivers highly responsive autofocus|
|To achieve both outstanding optical performance and satisfying usability, this lens features the latest SIGMA technologies, including a large hypersonic motor (HSM), dust- and splash-proof construction, and other high-quality features.||The large hypersonic motor (HSM) delivers ample torque to the focusing group for outstanding speed, ensuring exceptionally stable performance even at lower speeds. Along with the optimized AF algorithm, this feature delivers fast autofocus photography. In addition, the focus limiter makes AF highly responsive to distance from the subject for even more nimble performance.|
|Fast AF with full-time manual focus||High-precision, rugged brass bayonet mount|
|Full-time manual focus function allows the lens to be switched to manual focus simply by rotating the focus ring.||The lens mount incorporates rubber sealing to protect the mount from dust and water drops. While the brass mount combines high precision with rugged construction with its treated surfaces to offer enhanced strength contributing to the exceptional durability of the lens.|
|The 9-blade rounded diaphragm creates an attractive blur in the out-of-focus areas of the image.|
|Lens Mount||Leica L|
|Angle of View||18.2°|
|Minimum Focus Distance||2.87' / 87.5 cm|
|Optical Design||13 Elements in 10 Groups|
|Diaphragm Blades||9, Rounded|
|Filter Size||82 mm (Front)|
|Weight||2.5 lb / 1130 g|