Top optical performance makes it the ultimate go-to lens. An icon of SIGMA quality, this is the ideal standard lens.
SIGMA was the first lens manufacturer to introduce a 50mm F1.4 lens. Now, to create the ultimate go-to lens, they took optical performance and image quality to the limit. The result is a true icon of SIGMA quality. Fulfilling the concept of the Art line at the highest level, the 50mm F1.4 DG HSM is a large-aperture standard lens that delivers top performance. Its outstanding resolution makes it ideal for the high-megapixel era. It delivers exquisitely balanced images with a beautiful bokeh effect, setting a new benchmark for large-aperture standard lenses. It is the ultimate expression of the 50mm F1.4 specification, known to bring out the photographer's unique personality and approach. Once you own it, you'll never want to be without it!
The full realization of the Art product concept for you to hold in your own hands and appreciate with your own eyes.
Designed with a focus on sophisticated optical performance and tremendous expressive power, Sigma's new Art line of lenses delivers top-level image quality. With unsurpassed expressive performance, these lenses reach the high standards demanded by photographers with an artistic, creative inclination. Along with landscapes, portraits, still-life, close-up and casual snaps, they're perfect for the kind of photography that unleashes the inner artist. Ideal for studio photography, they offer just as much expressive scope when capturing architecture, starry skies, underwater shots and many other scenes. The full realization of the Art concept, the 50mm F1.4 DG HSM is the perfect flagship. Hold it in your own hands and appreciate it with your own eyes.
Offering the best 50mm F1.4 performance in the history of photography, this is the ultimate standard lens
Putting all of Sigma's large aperture lens development know-how into this lens, Sigma minimized optical aberrations and achieved the very highest level of optical performance.
A 50mm F1.4 large-aperture lens offers an angle of view similar to human vision, a beautiful bokeh effect, and expressive versatility. It's a basic specification that lets photographers take many different approaches to their craft. For this very reason, it demands a high level of fundamental performance. SIGMA has designed lenses especially for digital SLRs since they first appeared on the market. In 2008, they first introduced the SIGMA 50mm F1.4 EX DG HSM. Although compared to the lenses of today it had a fairly large body, this lens offered uncompromising performance and embodied Sigma's ideal of the standard lens. Until this time, only camera manufacturers had produced a lens in this specification for DSLRs. The Sigma version of this go-to lens created quite the stir at first. Earning the support of photographers with its exceptional performance, it has become one of their representative lenses. The SIGMA F1.4 DG HSM fulfills their design concept and quality requirements at the highest level. While producing a beautiful bokeh effect, it features exceptional peripheral brightness and minimal distortion. Uncompromising in every detail, this large-aperture standard lens offers the ultimate in image quality. Its high resolution makes it perfect for the high-megapixel era. Resolution is extremely crisp at the area in focus, while both front and rear bokeh are silky-smooth. Offering the ultra-high performance that characterizes the Art line, this lens inherits the design principles of the line's first model, the flagship SIGMA 50mm F1.4 DG HSM.
High resolution plus outstanding bokeh
While maximizing resolution at the area in focus, this lens offers a silky-smooth bokeh affect to the front and rear. To achieve exceptionally crisp resolution, they have minimized sagittal coma flare, chromatic aberration, and every other type of optical aberration that affects image quality. The result is minute detail without bleeding or streaking, even at wide-open aperture. Moreover, they have also minimized both vignetting and color streaking to the front and rear of the area in focus, thereby establishing a bokeh effect that is natural and aesthetically pleasing.
Minimized sagittal coma flare
An ideal large-aperture standard lens offers outstanding image quality across the image plane, even at wide-open aperture. Sagittal coma flare is an optical aberration in which point light sources near the image periphery have a tail ("coma") instead of appearing round. To minimize this aberration, they have included a precision-molded aspheric lens element in the rearmost lens group. Since it minimizes the streaking of point light sources near the edge of the image, this lens is an excellent choice for shooting heavenly bodies and nighttime illumination. In addition, its beautiful bokeh effect makes it a great go-to lens for portraits, interior shots, and many other applications.
Distortion is an optical aberration in which straight lines appear bent or curved. Since adjusting the focus cannot correct this aberration, it must be minimized at the design stage. This lens features aspheric lens elements and an optimized power distribution to minimize distortion from the center of the frame all the way to the edges.
Minimized axial chromatic aberration
Axial chromatic aberration is difficult to correct after a photograph is taken using image processing software. For this reason, this lens features SLD (Special Low Dispersion) glass to minimize axial chromatic aberration and deliver sharp, high-contrast image quality throughout the frame.
High peripheral brightness
Large-aperture lenses are prone to reduced peripheral brightness. In this lens, they have made the forward lens group large-aperture, thereby raising aperture efficiency. The result is minimal reduction of brightness at the image periphery and even image quality throughout the photograph. Even at the wide-open aperture, you can shoot a blue sky without fear of reduced brightness and achieve a beautiful bokeh effect at the same time.
An all-new, all-premium lineup
Superior functionality across the lineup, thanks to SIGMA's proprietary new A1 MTF measuring system.
There are three requirements for outstanding lenses: fine design, precise manufacturing and inspection that ensures compliance with all specifications. SIGMA lenses are born of well-thought-out design concepts and sophisticated, advanced Japanese manufacturing technology; the final clincher is SIGMA's lens performance evaluation. SIGMA used to measure lens performance using conventional sensors. However, they've now developed their own A1 proprietary MTF (modulation transfer function) measuring system using 46-megapixel Foveon direct image sensors. Applying this system, they check each lens in the new lines at it's Aizu factory, their sole production site. Even previously undetectable high-frequency details are now within the scope of SIGMA quality control inspections, allowing them to deliver consistently high lens performance.
46-megapixel Foveon direct image sensor
The 46 effective megapixel (4,800 x 3,200 x 3 layers) and 44 recording megapixel (4,704 x 3,136 x 3 layers) 23.5 x 15.7mm APS-C X3 direct image sensor captures all primary RGB colors at each and every pixel location, ensuring the capture of full and complete color. Using three silicon-embedded layers of photo detectors, stacked vertically to take advantage of silicon's ability to absorb red, green and blue light at different respective depths, it efficiently reproduces color more accurately, and offers sharper resolution, pixel for pixel, than any conventional image sensor. Since color moire is not generated, the use of a low-pass filter is not required, meaning light and color, generated by the 46-megapixel APS-C X3 direct image sensor is captured with a three-dimensional feel.
Ultra-high precision and quality-all made in Japan.
With only a few minor exceptions, all of SIGMA's manufacturing, including molds and parts, takes place under a single integrated production system in Japan. Sigma is now one of the very few manufacturers whose products are truly made in Japan. Sigma likes to think their products are somehow imbued with the essence of their homeland, blessed as it is with clean air and water, and focused, hard-working people. Sigma prides themselves on the authentic quality of SIGMA products, born of a marriage between highly attuned expertise and intelligent, advanced technology. Their sophisticated products have satisfied professionals and lovers of photography all over the world because their manufacturing is based on genuine craftsmanship, underpinned by the passion and pride of their experts.
The finest in materials, usability and functionality
A refined, integrated design made with the photographer in mind.
All lenses in SIGMA's new Art line come with a hood with a high-quality rubberized connector and feature a newly designed lens cap and AF/MF switch, and are designed for intuitive use and superior functionality. Inside, HSM (Hyper Sonic Motor) delivers high AF speed and extremely quiet performance. An enhanced algorithm offers even smoother automatic focusing. Full-time manual focus override is another key feature that leaves the artistic touches in the photographer's hands. The brass mount combines high precision with rugged construction. Its treated surfaces and enhanced strength contribute to the exceptional durability of the lens. In both the external and internal parts, the optimized use of TSC (Thermally Stable Composite), an excellent match for metal parts, further contributes to the high-precision construction of the lens. In addition, the last three digits of the year the lens was offered for sale are engraved on the barrel for ease of reference.
HSM (Hyper Sonic Motor)
HSM (Hyper Sonic Motor) delivers high AF speed and extremely quiet performance. An enhanced algorithm offers even smoother automatic focusing. Optimizing AF algorithm, smoother AF is achieved. Also, new firmware offers full-time MF function by rotating the focus ring of the lens while auto focusing. Without changing the AF/MF Focus Mode Switch, it allows faster focus adjustment.
* The default setting of Full-time MF function varies for each mount.
TSC (Thermally Stable Composite)
Conventionally it is considered essential to leverage the qualities of metal and polycarbonate in camera and lens layout design. A first for the industry, the barrel of the new series of SIGMA lenses features a new TSC (Thermally Stable Composite)* that offers minimal thermal shrinkage combined with exceptional hardness. It also offers 25% greater elasticity than polycarbonate. Since its thermal shrinkage is low, TSC matches well with metal parts, further contributing to the high-precision construction of the lens.
*TSC (Thermally Stable Composite) offers thermal expansion characteristics similar to those of aluminum. Parts made with TSC deform less, making possible lens construction of extremely high precision. As compared to polycarbonate containing 20% glass, a commonly used material, TSC offers approximately 70% higher elasticity. As compared to polycarbonate containing 30% glass, it offers 25% higher elasticity. (Comparison is between SIGMA-produced components.)
High-precision, rugged brass bayonet mount
The brass mount combines high precision with rugged construction. Its treated surfaces and enhanced strength contribute to the exceptional durability of the lens.
Minimum focusing distance of just 40cm
SIGMA's floating system adjusts the distance between lens groups during focusing, thereby reducing the amount of lens movement required. The result is less aberration at different shooting distances. Thanks to this system, this lens offers a minimum focusing distance of just 40 cm, a maximum magnification ratio of 1:5.6, and superb image quality at every shooting distance.
When photographing with point light sources such as electric lights or reflections on a body of water in the background, the rounded 9-blade diaphragm helps produce an attractive bokeh effect-even at large-aperture settings.
Flare and ghosting reduction
From an early stage in the lens design process, flare and ghosting have been measured to establish an optical design resistant to strong incident light sources such as backlighting. SIGMA's Super Multi-Layer Coating reduces flare and ghosting to help photographers produce sharp and high contrast images even in backlit conditions. The included lens hood can be attached to block out extraneous light, which can have a negative effect on rendering performance.
A lens customizable to your needs
New exclusive software and SIGMA USB DOCK make customization simple.
For the new Sigma product lines, they have developed exclusive SIGMA Optimization Pro software that allows the user to update the lens firmware and adjust the focus position and other parameters. By attaching this lens to a SIGMA USB DOCK, which is connected to a computer, the dedicated software "SIGMA Optimization Pro" offers various types of customization and adjustment such as firmware update, focus adjustment, full-time MF mode change and full-time MF operation timing customization.
Available for Sigma's Mount Conversion Service that enables lenses to be long term assets (charges apply)
Continue using your favorite lens with a different camera body.
Over the years, SIGMA has manufactured an extremely wide variety of interchangeable lenses. Leveraging their unique know-how and resources, Sigma's new Mount Conversion Service, which will be available for the SIGMA 20mm F1.4 DG HSM | Art and other SIGMA interchangeable lenses SIGMA will convert the current lens mount internal components, allowing you to continue using your favorite SIGMA lenses from the new product lines with a different camera body. Thanks to this service, you can use a favorite lens for many years to come, unrestricted by your original choice of camera system.
Note: SIGMA's mount conversion service differs from ordinary repairs and product support and is not offered at your local SIGMA dealer or camera store. To access this service, please communicate directly with SIGMA.
Lens Construction - 13 Elements in 8 Groups
Angle of View - 46.8 Degrees
Number of Diaphragm Blades - 9
Minimum Aperture - f16
Minimum Focusing Distance - 40 cm / 15.7 in
Filter Size (mm) - 77mm
Maximum Magnifications - 1: 5.6
Dimensions (Diameter x Length) - 85.4mm x 99.9mm / 3.4 x 3.9 in
Weight - 815g/ 28.7 oz
Corresponding Mount - Sony E HSM DG